diff --git a/src/vs/workbench/parts/themes/electron-browser/themes.contribution.ts b/src/vs/workbench/parts/themes/electron-browser/themes.contribution.ts
index 53ac0a47f6230aad0e88500f502996c1646fdaf0..e046e3758d45411bdb732e3ffb323c424397892e 100644
--- a/src/vs/workbench/parts/themes/electron-browser/themes.contribution.ts
+++ b/src/vs/workbench/parts/themes/electron-browser/themes.contribution.ts
@@ -62,7 +62,7 @@ class SelectThemeAction extends Action {
 					return this.viewletService.openViewlet(VIEWLET_ID, true)
 						.then(viewlet => viewlet as IExtensionsViewlet)
 						.then(viewlet => {
-							viewlet.search('tag:theme', true);
+							viewlet.search('category:themes', true);
 							viewlet.focus();
 						});
 				};