diff --git a/frameworks/native/backup_ext/include/ext_backup_js.h b/frameworks/native/backup_ext/include/ext_backup_js.h
index 6ec330fbd0c4260ddf05ea19f72e9af72c2c4116..ae0797887757c671e41fccd4c5a424879b13174f 100644
--- a/frameworks/native/backup_ext/include/ext_backup_js.h
+++ b/frameworks/native/backup_ext/include/ext_backup_js.h
@@ -127,7 +127,10 @@ public:
 
 public:
     explicit ExtBackupJs(AbilityRuntime::JsRuntime &jsRuntime) : jsRuntime_(jsRuntime) {}
-    ~ExtBackupJs() override = default;
+    ~ExtBackupJs()
+    {
+        jsRuntime_.FreeNativeReference(std::move(jsObj_));
+    }
 
 private:
     std::tuple<ErrCode, NativeValue *> CallObjectMethod(std::string_view name,