diff --git a/config/admin_service_cmd_runner.go b/config/admin_service_cmd_runner.go
index 0541fb7..0baeef8 100644
--- a/config/admin_service_cmd_runner.go
+++ b/config/admin_service_cmd_runner.go
@@ -14,7 +14,7 @@ func ExecuteCmd(executablePath, args string, background bool) (string, error) {
 	if appimage := os.Getenv("APPIMAGE"); appimage != "" {
 		executablePath = appimage + " HiddifyService"
 		if !background {
-			return nil, fmt.Errorf("Appimage can not have service")
+			return "Fail", fmt.Errorf("Appimage can not have service")
 		}
 	}