1 files changed, 1 insertions, 1 deletions
diff --git a/builtin.c b/builtin.c
index 67b43c7f5c..6de77228d0 100644
--- a/builtin.c
+++ b/builtin.c
@@ -51,7 +51,7 @@ rb_load_with_builtin_functions(const char *feature_name, const struct rb_builtin
     vm->builtin_function_table = NULL;
 
     // exec
-    rb_iseq_eval(iseq);
+    rb_iseq_eval(rb_iseq_check(iseq));
 }
 
 #endif