2 files changed, 9 insertions, 2 deletions
diff --git a/bootstraptest/test_ractor.rb b/bootstraptest/test_ractor.rb
index c587c2c1eb..797ad0a3ee 100644
--- a/bootstraptest/test_ractor.rb
+++ b/bootstraptest/test_ractor.rb
@@ -1149,6 +1149,14 @@ assert_equal '[:ok, false, false]', %q{
   [(Ractor.make_shareable(x) rescue :ok), Ractor.shareable?(x), Ractor.shareable?(y)]
 }
 
+# Ractor.make_shareable with Class/Module
+assert_equal '[C, M]', %q{
+  class C; end
+  module M; end
+
+  Ractor.make_shareable(ary = [C, M])
+}
+
 # define_method() can invoke different Ractor's proc if the proc is shareable.
 assert_equal '1', %q{
   class C
@@ -1191,7 +1199,6 @@ assert_equal '[false, false, true, true]', %q{
   r
 }
 
-
 # Ractor deep copies frozen objects (ary)
 assert_equal '[true, false]', %q{
   Ractor.new([[]].freeze) { |ary|
diff --git a/ractor.c b/ractor.c
index 180795b9c1..d2d4ee2e38 100644
--- a/ractor.c
+++ b/ractor.c
@@ -2396,7 +2396,7 @@ make_shareable_check_shareable(VALUE obj)
     VM_ASSERT(!SPECIAL_CONST_P(obj));
     bool made_shareable = false;
 
-    if (RB_OBJ_SHAREABLE_P(obj)) {
+    if (rb_ractor_shareable_p(obj)) {
         return traverse_skip;
     }
     else if (!frozen_shareable_p(obj, &made_shareable)) {