diff --git a/src/app/service/service_worker/runtime.ts b/src/app/service/service_worker/runtime.ts
index 7643fe492..277bb7629 100644
--- a/src/app/service/service_worker/runtime.ts
+++ b/src/app/service/service_worker/runtime.ts
@@ -873,6 +873,7 @@ export class RuntimeService {
       // scriptcat-content/scriptcat-inject不存在的情况
       // 走一次重新注册的流程
       this.logger.warn("registered = true but scriptcat-content/scriptcat-inject not exists, re-register userscripts.");
+      runtimeGlobal.registered = false; // 异常时强制反注册
     }
     // 删除旧注册
     await this.unregisterUserscripts();