diff --git a/electron-builder.yml b/electron-builder.yml
index cd58978..6ddc885 100644
--- a/electron-builder.yml
+++ b/electron-builder.yml
@@ -167,6 +167,7 @@ linux:
       Comment: AI Assistant powered by OpenClaw
       Categories: Utility;Network;
       Keywords: ai;assistant;automation;chat;
+      StartupWMClass: clawx
 
 appImage:
   license: LICENSE
diff --git a/electron/main/index.ts b/electron/main/index.ts
index fe3101f..b387c40 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -37,12 +37,12 @@ import { ensureBuiltinSkillsInstalled } from '../utils/skill-config';
 // set `"disable-hardware-acceleration": false` in the app config (future).
 app.disableHardwareAcceleration();
 
-// On Linux (Wayland), tell GNOME which .desktop file belongs to this process.
-// Without this, the compositor cannot associate the running window with
-// clawx.desktop, so no icon appears in the dock even though the app is running.
+// On Linux, set CHROME_DESKTOP so Chromium can find the correct .desktop file.
+// On Wayland this maps the running window to clawx.desktop (→ icon + app grouping);
+// on X11 it supplements the StartupWMClass matching.
 // Must be called before app.whenReady() / before any window is created.
 if (process.platform === 'linux') {
-  app.setDesktopName('clawx');
+  app.setDesktopName('clawx.desktop');
 }
 
 // Prevent multiple instances of the app from running simultaneously.