diff --git a/prism/prism.c b/prism/prism.c
index 747e1bb97859df..1cc999e31e7a3f 100644
--- a/prism/prism.c
+++ b/prism/prism.c
@@ -7372,57 +7372,57 @@ escape_read(pm_parser_t *parser, pm_buffer_t *buffer, uint8_t flags) {
     switch (peek(parser)) {
         case '\\': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\\');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\\', flags));
             return;
         }
         case '\'': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\'');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\'', flags));
             return;
         }
         case 'a': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\a');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\a', flags));
             return;
         }
         case 'b': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\b');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\b', flags));
             return;
         }
         case 'e': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\033');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\033', flags));
             return;
         }
         case 'f': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\f');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\f', flags));
             return;
         }
         case 'n': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\n');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\n', flags));
             return;
         }
         case 'r': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\r');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\r', flags));
             return;
         }
         case 's': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, ' ');
+            escape_write_byte_encoded(parser, buffer, escape_byte(' ', flags));
             return;
         }
         case 't': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\t');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\t', flags));
             return;
         }
         case 'v': {
             parser->current.end++;
-            pm_buffer_append_byte(buffer, '\v');
+            escape_write_byte_encoded(parser, buffer, escape_byte('\v', flags));
             return;
         }
         case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': {
@@ -7656,7 +7656,7 @@ escape_read(pm_parser_t *parser, pm_buffer_t *buffer, uint8_t flags) {
         case '\r': {
             if (peek_offset(parser, 1) == '\n') {
                 parser->current.end += 2;
-                pm_buffer_append_byte(buffer, '\n');
+                escape_write_byte_encoded(parser, buffer, escape_byte('\n', flags));
                 return;
             }
         }