diff --git a/setup-wizard/src/app/services/state.service.ts b/setup-wizard/src/app/services/state.service.ts
index 6f2563460..033f6d18c 100644
--- a/setup-wizard/src/app/services/state.service.ts
+++ b/setup-wizard/src/app/services/state.service.ts
@@ -21,7 +21,7 @@ export class StateService {
 
   constructor(
     private readonly apiService: ApiService,
-    private errorToastService: ErrorToastService
+    private readonly errorToastService: ErrorToastService
   ) {}
 
   async pollDataTransferProgress(callback?: () => void) {