diff --git a/deepin-devicemanager/assets/deepin-devicemanager.desktop b/deepin-devicemanager/assets/deepin-devicemanager.desktop
index 38c37703..7b3f39bb 100644
--- a/deepin-devicemanager/assets/deepin-devicemanager.desktop
+++ b/deepin-devicemanager/assets/deepin-devicemanager.desktop
@@ -10,6 +10,7 @@ Terminal=false
 Type=Application
 X-Ayatana-Desktop-Shortcuts=deepin-devicemanager
 X-Deepin-Vendor=deepin
+X-Deepin-Singleton=true
 
 # Translations:
 # Do not manually modify!