diff --git a/test/smoke/src/areas/workbench/localization.test.ts b/test/smoke/src/areas/workbench/localization.test.ts
index ea7a25bf8cfba58da8d957b8e80163e3931c34e9..dace3cc683e3b7aeb6fc4b847cc6e2292cdc93df 100644
--- a/test/smoke/src/areas/workbench/localization.test.ts
+++ b/test/smoke/src/areas/workbench/localization.test.ts
@@ -14,6 +14,10 @@ export function setup() {
 				return;
 			}
 
+			const extensionName = 'German Language Pack for Visual Studio Code';
+			await app.workbench.extensions.openExtensionsViewlet();
+			await app.workbench.extensions.installExtension(extensionName);
+
 			await app.restart({ extraArgs: ['--locale=DE'] });
 		});