diff --git a/src/services/auth.service.ts b/src/services/auth.service.ts
index 0f991eddd9..5a4227f8b4 100644
--- a/src/services/auth.service.ts
+++ b/src/services/auth.service.ts
@@ -209,7 +209,7 @@ export class AuthService {
                 this.kdfIterations = preloginResponse.kdfIterations;
             }
         } catch (e) {
-            if (!(e instanceof ErrorResponse) || e.statusCode !== 404) {
+            if (e == null || e.statusCode !== 404) {
                 throw e;
             }
         }