diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1ab97a28..41f5883a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -254,7 +254,7 @@ jobs:
         run: ${{ matrix.dist_command }} --publish never
 
       - name: Validate packaged bundle (macOS ${{ matrix.arch }})
-        run: node ./scripts/electron-builder/verifyBundle.cjs "release/mac-${{ matrix.arch }}/Agent Teams UI.app" darwin ${{ matrix.arch }}
+        run: node ./scripts/electron-builder/verifyBundle.cjs "release/mac-${{ matrix.arch }}/Agent-Teams-UI.app" darwin ${{ matrix.arch }}
 
       - name: Upload assets to release
         if: startsWith(github.ref, 'refs/tags/v')
diff --git a/package.json b/package.json
index b6ee7177..d3f74fd9 100644
--- a/package.json
+++ b/package.json
@@ -230,7 +230,7 @@
   },
   "build": {
     "appId": "com.agent-teams.app",
-    "productName": "Agent Teams UI",
+    "productName": "Agent-Teams-UI",
     "directories": {
       "output": "release"
     },
@@ -305,7 +305,10 @@
         "pacman"
       ],
       "icon": "resources/icons/png",
-      "category": "Development"
+      "category": "Development",
+      "desktop": {
+        "Name": "Agent Teams UI"
+      }
     },
     "appImage": {
       "artifactName": "Agent.Teams.AI-${version}.${ext}"
diff --git a/src/main/index.ts b/src/main/index.ts
index 4c914fc7..ba782746 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -107,6 +107,10 @@ import { app, BrowserWindow, ipcMain } from 'electron';
 import { existsSync } from 'fs';
 import { join } from 'path';
 
+// productName uses hyphens to avoid spaces in the Linux install path (/opt/Agent-Teams-UI/).
+// Restore the human-readable display name for macOS menus and Windows system dialogs.
+app.setName('Agent Teams UI');
+
 import { cleanupEditorState, setEditorMainWindow } from './ipc/editor';
 import { initializeIpcHandlers, removeIpcHandlers } from './ipc/handlers';
 import { registerRendererLogHandlers } from './ipc/rendererLogs';
diff --git a/test/main/services/team/ClaudeBinaryResolver.test.ts b/test/main/services/team/ClaudeBinaryResolver.test.ts
index 2378db8e..810a90eb 100644
--- a/test/main/services/team/ClaudeBinaryResolver.test.ts
+++ b/test/main/services/team/ClaudeBinaryResolver.test.ts
@@ -72,7 +72,7 @@ describe('ClaudeBinaryResolver', () => {
     });
     process.cwd = vi.fn(() => workspaceRoot);
     Object.defineProperty(process, 'resourcesPath', {
-      value: '/Applications/Agent Teams UI.app/Contents/Resources',
+      value: '/Applications/Agent-Teams-UI.app/Contents/Resources',
       configurable: true,
       writable: true,
     });
@@ -200,7 +200,7 @@ describe('ClaudeBinaryResolver', () => {
 
   it('prefers the bundled runtime binary for packaged agent_teams_orchestrator builds', async () => {
     const expectedBinary = path.join(
-      '/Applications/Agent Teams UI.app/Contents/Resources',
+      '/Applications/Agent-Teams-UI.app/Contents/Resources',
       'runtime',
       'claude-multimodel'
     );