diff --git a/platform/autotest/test-app-launcher.cpp b/platform/autotest/test-app-launcher.cpp
index ae449eb33ccb3258bcd6ffe9154f6eea8ca1ac33..39f08ff0667d6a76cd302f36158f033a985434b8 100644
--- a/platform/autotest/test-app-launcher.cpp
+++ b/platform/autotest/test-app-launcher.cpp
@@ -392,18 +392,20 @@ void app_launcher_test::runCommandFallsBackToDetachedProcessWhenProcessManagerCa
     const QString markerPath = dir.filePath(QStringLiteral("run-command.marker"));
     const QByteArray scriptContents =
         "#!/bin/sh\n"
-        "printf fallback-run > \"" + markerPath.toUtf8() + "\"\n";
-    const QString scriptPath = writeExecutableScript(dir, QStringLiteral("run-command.sh"), scriptContents);
+        "printf '%s\\n%s\\n' \"$1\" \"$2\" > \"" + markerPath.toUtf8() + "\"\n";
+    const QString scriptPath = writeExecutableScript(dir, QStringLiteral("run command.sh"), scriptContents);
     QVERIFY(!scriptPath.isEmpty());
 
     auto *launcher = AppLauncher::instance();
+    const QString argumentWithSpaces = QStringLiteral("value with spaces");
+    const QString command = QStringLiteral("\"%1\" --label \"%2\"").arg(scriptPath, argumentWithSpaces);
 
-    launcher->runCommand(scriptPath);
+    launcher->runCommand(command);
     QTRY_VERIFY(QFile::exists(markerPath));
 
     QFile markerFile(markerPath);
     QVERIFY(markerFile.open(QIODevice::ReadOnly));
-    QCOMPARE(QString::fromUtf8(markerFile.readAll()).trimmed(), QStringLiteral("fallback-run"));
+    QCOMPARE(QString::fromUtf8(markerFile.readAll()), QStringLiteral("--label\nvalue with spaces\n"));
     waitForNoPendingCallWatchers(launcher);
 }
 
diff --git a/platform/ukui/app-launcher.cpp b/platform/ukui/app-launcher.cpp
index 0da714534cd016280c55e4aac86c1894db33f96b..38bc39d2c286243ec72abe4f98025003ec16d52b 100644
--- a/platform/ukui/app-launcher.cpp
+++ b/platform/ukui/app-launcher.cpp
@@ -210,7 +210,15 @@ void AppLauncher::runCommand(const QString &cmd)
     QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this, [cmd] (QDBusPendingCallWatcher *self) {
         if (self->isError()) {
             qWarning() << "Fail to call " << KYLIN_APP_MANAGER_INTERFACE << self->error();
-            QProcess::startDetached(cmd, {});
+            QStringList commandParts = QProcess::splitCommand(cmd);
+            if (commandParts.isEmpty()) {
+                qWarning() << "Fail to run empty command";
+            } else {
+                const QString program = commandParts.takeFirst();
+                if (!QProcess::startDetached(program, commandParts)) {
+                    qWarning() << "Fail to run command" << cmd;
+                }
+            }
         }
         self->deleteLater();
     });