diff --git a/prism_compile.c b/prism_compile.c
index 695dcc5ab94d15..6024f690586a81 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -1489,6 +1489,7 @@ pm_compile_defined_expr0(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *co
       case PM_INTEGER_NODE:
       case PM_INTERPOLATED_REGULAR_EXPRESSION_NODE:
       case PM_INTERPOLATED_STRING_NODE:
+      case PM_KEYWORD_HASH_NODE:
       case PM_LAMBDA_NODE:
       case PM_OR_NODE:
       case PM_RANGE_NODE:
diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index d403901f1a9451..f58b5303688377 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -127,6 +127,7 @@ def test_DefinedNode
 
       assert_prism_eval("defined? [*b]")
       assert_prism_eval("defined? [[*1..2], 3, *4..5]")
+      assert_prism_eval("defined? [a: [:b, :c]]")
 
       assert_prism_eval("defined? @a")
       assert_prism_eval("defined? $a")