diff --git a/assets/configures/unioncode.desktop b/assets/configures/unioncode.desktop
index 7af2cb0f6..36ff17137 100644
--- a/assets/configures/unioncode.desktop
+++ b/assets/configures/unioncode.desktop
@@ -10,6 +10,6 @@ MimeType=text/plain;application/x-code-workspace;
 Name=Deepin Union Code
 Path=/usr/bin
 StartupNotify=false
-StartupWMClass=Code
+StartupWMClass=UnionCode
 Type=Application
 X-Deepin-Vendor=user-custom