diff --git a/web/gui2/src/main/webapp/tests/app/fw/util/fn.service.spec.ts b/web/gui2/src/main/webapp/tests/app/fw/util/fn.service.spec.ts
index bf75091..e3d3c87 100644
--- a/web/gui2/src/main/webapp/tests/app/fw/util/fn.service.spec.ts
+++ b/web/gui2/src/main/webapp/tests/app/fw/util/fn.service.spec.ts
@@ -62,7 +62,7 @@
             providers: [FnService,
                 { provide: LogService, useValue: logSpy },
                 { provide: ActivatedRoute, useValue: ar },
-                { provide: Window, useFactory: (() => mockWindow ) }
+                { provide: 'Window', useFactory: (() => mockWindow ) }
             ]
         });