diff --git a/core/my_basic.c b/core/my_basic.c
index ff6ebd3..b475555 100755
--- a/core/my_basic.c
+++ b/core/my_basic.c
@@ -15522,7 +15522,6 @@ static int _std_str(mb_interpreter_t* s, void** l) {
 				goto _exit;
 			}
 		}
-		break;
 #endif /* MB_ENABLE_CLASS */
 	default:
 		result = MB_FUNC_ERR;