diff --git a/plugins/nezha/update.sh b/plugins/nezha/update.sh
index 150fdd500..d40b034e6 100644
--- a/plugins/nezha/update.sh
+++ b/plugins/nezha/update.sh
@@ -93,6 +93,7 @@ unzip $DOWNLOAD_FILE -d $TARGET_DIR
 echo "TARGET_DIR:"$TARGET_DIR
 
 if [ ! -f $TARGET_DIR/app ];then
+	cd $TARGET_DIR && rm -rf app
 	cd $TARGET_DIR && mv dashboard-linux-${ARCH} app && chmod +x app
 fi