diff --git a/ractor.c b/ractor.c
index d2d4ee2e38..be067d6113 100644
--- a/ractor.c
+++ b/ractor.c
@@ -2440,7 +2440,7 @@ rb_ractor_make_shareable(VALUE obj)
 }
 
 VALUE
-rb_ractor_make_copy_shareable(VALUE obj)
+rb_ractor_make_shareable_copy(VALUE obj)
 {
     VALUE copy = ractor_copy(obj);
     rb_obj_traverse(copy,
diff --git a/ractor.rb b/ractor.rb
index 3622c661e6..12643e6e16 100644
--- a/ractor.rb
+++ b/ractor.rb
@@ -748,7 +748,7 @@ class Ractor
   def self.make_shareable obj, copy: false
     if copy
       __builtin_cexpr! %q{
-        rb_ractor_make_copy_shareable(obj);
+        rb_ractor_make_shareable_copy(obj);
       }
     else
       __builtin_cexpr! %q{