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-rw-r--r--vm_method.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/vm_method.c b/vm_method.c
index a10f90e7a3..b12d134dce 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -858,7 +858,7 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
rb_class_modify_check(klass);
}
- if (FL_TEST(klass, RMODULE_IS_REFINEMENT)) {
+ if (RB_TYPE_P(klass, T_MODULE) && FL_TEST(klass, RMODULE_IS_REFINEMENT)) {
VALUE refined_class = rb_refinement_module_get_refined_class(klass);
rb_add_refined_method_entry(refined_class, mid);
}