1 files changed, 1 insertions, 1 deletions
diff --git a/insns.def b/insns.def
index 4da49e2425..95414656bc 100644
--- a/insns.def
+++ b/insns.def
@@ -764,7 +764,7 @@ defined
 	klass = vm_get_cbase(GET_ISEQ(), GET_LFP(), GET_DFP());
 	break;
       case DEFINED_GVAR:
-	if (rb_gvar_defined((struct rb_global_entry *)(obj & ~1))) {
+	if (rb_gvar_defined(rb_global_entry(SYM2ID(obj)))) {
 	    expr_type = "global-variable";
 	}
 	break;