diff --git a/ast.c b/ast.c
index d3e217dafcca2a..4bd3784fbae9ae 100644
--- a/ast.c
+++ b/ast.c
@@ -97,7 +97,7 @@ rb_ast_parse_str(VALUE str, VALUE keep_script_lines, VALUE error_tolerant, VALUE
 
     StringValue(str);
     VALUE vparser = ast_parse_new();
-    if (RTEST(keep_script_lines)) rb_parser_keep_script_lines(vparser);
+    if (RTEST(keep_script_lines)) rb_parser_set_script_lines(vparser, Qtrue);
     if (RTEST(error_tolerant)) rb_parser_error_tolerant(vparser);
     if (RTEST(keep_tokens)) rb_parser_keep_tokens(vparser);
     ast = rb_parser_compile_string_path(vparser, Qnil, str, 1);
@@ -121,7 +121,7 @@ rb_ast_parse_file(VALUE path, VALUE keep_script_lines, VALUE error_tolerant, VAL
     f = rb_file_open_str(path, "r");
     rb_funcall(f, rb_intern("set_encoding"), 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-"));
     VALUE vparser = ast_parse_new();
-    if (RTEST(keep_script_lines)) rb_parser_keep_script_lines(vparser);
+    if (RTEST(keep_script_lines)) rb_parser_set_script_lines(vparser, Qtrue);
     if (RTEST(error_tolerant))  rb_parser_error_tolerant(vparser);
     if (RTEST(keep_tokens))  rb_parser_keep_tokens(vparser);
     ast = rb_parser_compile_file_path(vparser, Qnil, f, 1);
@@ -149,7 +149,7 @@ rb_ast_parse_array(VALUE array, VALUE keep_script_lines, VALUE error_tolerant, V
 
     array = rb_check_array_type(array);
     VALUE vparser = ast_parse_new();
-    if (RTEST(keep_script_lines)) rb_parser_keep_script_lines(vparser);
+    if (RTEST(keep_script_lines)) rb_parser_set_script_lines(vparser, Qtrue);
     if (RTEST(error_tolerant)) rb_parser_error_tolerant(vparser);
     if (RTEST(keep_tokens)) rb_parser_keep_tokens(vparser);
     ast = rb_parser_compile_generic(vparser, lex_array, Qnil, array, 1);
@@ -184,8 +184,8 @@ node_find(VALUE self, const int node_id)
 
 extern VALUE rb_e_script;
 
-static VALUE
-script_lines(VALUE path)
+VALUE
+rb_script_lines_for(VALUE path, bool add)
 {
     VALUE hash, lines;
     ID script_lines;
@@ -193,10 +193,19 @@ script_lines(VALUE path)
     if (!rb_const_defined_at(rb_cObject, script_lines)) return Qnil;
     hash = rb_const_get_at(rb_cObject, script_lines);
     if (!RB_TYPE_P(hash, T_HASH)) return Qnil;
-    lines = rb_hash_lookup(hash, path);
-    if (!RB_TYPE_P(lines, T_ARRAY)) return Qnil;
+    if (add) {
+        rb_hash_aset(hash, path, lines = rb_ary_new());
+    }
+    else if (!RB_TYPE_P((lines = rb_hash_lookup(hash, path)), T_ARRAY)) {
+        return Qnil;
+    }
     return lines;
 }
+static VALUE
+script_lines(VALUE path)
+{
+    return rb_script_lines_for(path, false);
+}
 
 static VALUE
 node_id_for_backtrace_location(rb_execution_context_t *ec, VALUE module, VALUE location)
diff --git a/ast.rb b/ast.rb
index ec870d8c7a725a..fa9b69507c3f43 100644
--- a/ast.rb
+++ b/ast.rb
@@ -20,7 +20,7 @@
 module RubyVM::AbstractSyntaxTree
 
   #  call-seq:
-  #     RubyVM::AbstractSyntaxTree.parse(string, keep_script_lines: false, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
+  #     RubyVM::AbstractSyntaxTree.parse(string, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
   #
   #  Parses the given _string_ into an abstract syntax tree,
   #  returning the root node of that tree.
@@ -55,12 +55,12 @@ module RubyVM::AbstractSyntaxTree
   #
   #  Note that parsing continues even after the errored expression.
   #
-  def self.parse string, keep_script_lines: false, error_tolerant: false, keep_tokens: false
+  def self.parse string, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false
     Primitive.ast_s_parse string, keep_script_lines, error_tolerant, keep_tokens
   end
 
   #  call-seq:
-  #     RubyVM::AbstractSyntaxTree.parse_file(pathname, keep_script_lines: false, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
+  #     RubyVM::AbstractSyntaxTree.parse_file(pathname, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
   #
   #   Reads the file from _pathname_, then parses it like ::parse,
   #   returning the root node of the abstract syntax tree.
@@ -72,13 +72,13 @@ def self.parse string, keep_script_lines: false, error_tolerant: false, keep_tok
   #     # => #<RubyVM::AbstractSyntaxTree::Node:SCOPE@1:0-31:3>
   #
   #   See ::parse for explanation of keyword argument meaning and usage.
-  def self.parse_file pathname, keep_script_lines: false, error_tolerant: false, keep_tokens: false
+  def self.parse_file pathname, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false
     Primitive.ast_s_parse_file pathname, keep_script_lines, error_tolerant, keep_tokens
   end
 
   #  call-seq:
-  #     RubyVM::AbstractSyntaxTree.of(proc, keep_script_lines: false, error_tolerant: false, keep_tokens: false)   -> RubyVM::AbstractSyntaxTree::Node
-  #     RubyVM::AbstractSyntaxTree.of(method, keep_script_lines: false, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
+  #     RubyVM::AbstractSyntaxTree.of(proc, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false)   -> RubyVM::AbstractSyntaxTree::Node
+  #     RubyVM::AbstractSyntaxTree.of(method, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false) -> RubyVM::AbstractSyntaxTree::Node
   #
   #   Returns AST nodes of the given _proc_ or _method_.
   #
@@ -93,7 +93,7 @@ def self.parse_file pathname, keep_script_lines: false, error_tolerant: false, k
   #     # => #<RubyVM::AbstractSyntaxTree::Node:SCOPE@1:0-3:3>
   #
   #   See ::parse for explanation of keyword argument meaning and usage.
-  def self.of body, keep_script_lines: false, error_tolerant: false, keep_tokens: false
+  def self.of body, keep_script_lines: RubyVM.keep_script_lines, error_tolerant: false, keep_tokens: false
     Primitive.ast_s_of body, keep_script_lines, error_tolerant, keep_tokens
   end
 
diff --git a/internal/parse.h b/internal/parse.h
index c66c8df7b61684..ce99556ef95842 100644
--- a/internal/parse.h
+++ b/internal/parse.h
@@ -78,7 +78,7 @@ size_t rb_ruby_parser_memsize(const void *ptr);
 
 void rb_ruby_parser_set_options(rb_parser_t *p, int print, int loop, int chomp, int split);
 rb_parser_t *rb_ruby_parser_set_context(rb_parser_t *p, const struct rb_iseq_struct *base, int main);
-void rb_ruby_parser_keep_script_lines(rb_parser_t *p);
+void rb_ruby_parser_set_script_lines(rb_parser_t *p, VALUE lines_array);
 void rb_ruby_parser_error_tolerant(rb_parser_t *p);
 rb_ast_t* rb_ruby_parser_compile_file_path(rb_parser_t *p, VALUE fname, VALUE file, int start);
 void rb_ruby_parser_keep_tokens(rb_parser_t *p);
diff --git a/internal/ruby_parser.h b/internal/ruby_parser.h
index c6240cf9fa9e52..fc23177719ea93 100644
--- a/internal/ruby_parser.h
+++ b/internal/ruby_parser.h
@@ -19,7 +19,7 @@ VALUE rb_parser_encoding(VALUE);
 VALUE rb_parser_set_yydebug(VALUE, VALUE);
 void rb_parser_set_options(VALUE, int, int, int, int);
 void *rb_parser_load_file(VALUE parser, VALUE name);
-void rb_parser_keep_script_lines(VALUE vparser);
+void rb_parser_set_script_lines(VALUE vparser, VALUE lines_array);
 void rb_parser_error_tolerant(VALUE vparser);
 void rb_parser_keep_tokens(VALUE vparser);
 
diff --git a/iseq.c b/iseq.c
index 51d7ef78da60d1..80bd280a14b25e 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1122,6 +1122,7 @@ rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE realpath, VALUE line, V
         const rb_iseq_t *outer_scope = rb_iseq_new(NULL, name, name, Qnil, 0, ISEQ_TYPE_TOP);
         VALUE outer_scope_v = (VALUE)outer_scope;
         rb_parser_set_context(parser, outer_scope, FALSE);
+        rb_parser_set_script_lines(parser, RBOOL(ruby_vm_keep_script_lines));
         RB_GC_GUARD(outer_scope_v);
         ast = (*parse)(parser, file, src, ln);
     }
diff --git a/parse.y b/parse.y
index e9252154e92785..847a8e0933775a 100644
--- a/parse.y
+++ b/parse.y
@@ -151,26 +151,6 @@ literal_hash(VALUE a)
     return rb_iseq_cdhash_hash(a);
 }
 
-static ID
-script_lines(void)
-{
-    ID script_lines;
-    CONST_ID(script_lines, "SCRIPT_LINES__");
-    return script_lines;
-}
-
-static int
-script_lines_defined(void)
-{
-    return rb_const_defined_at(rb_cObject, script_lines());
-}
-
-static VALUE
-script_lines_get(void)
-{
-    return rb_const_get_at(rb_cObject, script_lines());
-}
-
 static VALUE
 syntax_error_new(void)
 {
@@ -550,7 +530,6 @@ struct parser_params {
     unsigned int do_loop: 1;
     unsigned int do_chomp: 1;
     unsigned int do_split: 1;
-    unsigned int keep_script_lines: 1;
     unsigned int error_tolerant: 1;
     unsigned int keep_tokens: 1;
 
@@ -6844,20 +6823,6 @@ static void parser_prepare(struct parser_params *p);
 #ifndef RIPPER
 static NODE *parser_append_options(struct parser_params *p, NODE *node);
 
-static VALUE
-debug_lines(struct parser_params *p, VALUE fname)
-{
-    if (script_lines_defined()) {
-        VALUE hash = script_lines_get();
-        if (RB_TYPE_P(hash, T_HASH)) {
-            VALUE lines = rb_ary_new();
-            rb_hash_aset(hash, fname, lines);
-            return lines;
-        }
-    }
-    return 0;
-}
-
 static int
 e_option_supplied(struct parser_params *p)
 {
@@ -6873,7 +6838,6 @@ yycompile0(VALUE arg)
     int cov = FALSE;
 
     if (!compile_for_eval && !NIL_P(p->ruby_sourcefile_string)) {
-        p->debug_lines = debug_lines(p, p->ruby_sourcefile_string);
         if (p->debug_lines && p->ruby_sourceline > 0) {
             VALUE str = rb_default_rs;
             n = p->ruby_sourceline;
@@ -6887,11 +6851,7 @@ yycompile0(VALUE arg)
         }
     }
 
-    if (p->keep_script_lines || ruby_vm_keep_script_lines) {
-        if (!p->debug_lines) {
-            p->debug_lines = rb_ary_new();
-        }
-
+    if (p->debug_lines) {
         RB_OBJ_WRITE(p->ast, &p->ast->body.script_lines, p->debug_lines);
     }
 
@@ -13983,9 +13943,19 @@ rb_ruby_parser_set_context(rb_parser_t *p, const struct rb_iseq_struct *base, in
 }
 
 void
-rb_ruby_parser_keep_script_lines(rb_parser_t *p)
+rb_ruby_parser_set_script_lines(rb_parser_t *p, VALUE lines)
 {
-    p->keep_script_lines = 1;
+    if (!RTEST(lines)) {
+        lines = Qfalse;
+    }
+    else if (lines == Qtrue) {
+        lines = rb_ary_new();
+    }
+    else {
+        Check_Type(lines, T_ARRAY);
+        rb_ary_modify(lines);
+    }
+    p->debug_lines = lines;
 }
 
 void
@@ -14073,12 +14043,12 @@ rb_parser_error_tolerant(VALUE vparser)
 }
 
 void
-rb_parser_keep_script_lines(VALUE vparser)
+rb_parser_set_script_lines(VALUE vparser, VALUE lines)
 {
     struct parser_params *p;
 
     TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p);
-    rb_ruby_parser_keep_script_lines(p);
+    rb_ruby_parser_set_script_lines(p, lines);
 }
 
 void
diff --git a/ruby.c b/ruby.c
index 243fbac5962b6c..2b4397c0011617 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2397,6 +2397,8 @@ struct load_file_arg {
     VALUE f;
 };
 
+VALUE rb_script_lines_for(VALUE path, bool add);
+
 static VALUE
 load_file_internal(VALUE argp_v)
 {
@@ -2499,6 +2501,12 @@ load_file_internal(VALUE argp_v)
     }
     rb_parser_set_options(parser, opt->do_print, opt->do_loop,
                           opt->do_line, opt->do_split);
+
+    VALUE lines = rb_script_lines_for(orig_fname, true);
+    if (!NIL_P(lines)) {
+        rb_parser_set_script_lines(parser, lines);
+    }
+
     if (NIL_P(f)) {
         f = rb_str_new(0, 0);
         rb_enc_associate(f, enc);
diff --git a/ruby_parser.c b/ruby_parser.c
index 9ab78be2a9689a..c059ac2d11af79 100644
--- a/ruby_parser.c
+++ b/ruby_parser.c
@@ -853,12 +853,12 @@ rb_parser_set_context(VALUE vparser, const struct rb_iseq_struct *base, int main
 }
 
 void
-rb_parser_keep_script_lines(VALUE vparser)
+rb_parser_set_script_lines(VALUE vparser, VALUE lines)
 {
     struct ruby_parser *parser;
 
     TypedData_Get_Struct(vparser, struct ruby_parser, &ruby_parser_data_type, parser);
-    rb_ruby_parser_keep_script_lines(parser->parser_params);
+    rb_ruby_parser_set_script_lines(parser->parser_params, lines);
 }
 
 void
diff --git a/vm_eval.c b/vm_eval.c
index fb24e2a9e9fbca..36c665509352d8 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -1681,6 +1681,7 @@ eval_make_iseq(VALUE src, VALUE fname, int line, const rb_binding_t *bind,
     }
 
     rb_parser_set_context(parser, parent, FALSE);
+    rb_parser_set_script_lines(parser, RBOOL(ruby_vm_keep_script_lines));
     ast = rb_parser_compile_string_path(parser, fname, src, line);
     if (ast->body.root) {
         ast->body.coverage_enabled = coverage_enabled;