diff --git a/core/object/script_language_extension.h b/core/object/script_language_extension.h
index b705d13cd6a..912f2218c46 100644
--- a/core/object/script_language_extension.h
+++ b/core/object/script_language_extension.h
@@ -125,7 +125,8 @@ public:
 		}
 		Variant ret;
 		GDVIRTUAL_REQUIRED_CALL(_get_property_default_value, p_property, ret);
-		return ret;
+		r_value = ret;
+		return true;
 	}
 
 	EXBIND0(update_exports)