diff --git a/src/app/app.interceptor.ts b/src/app/app.interceptor.ts
index 350870e6b9b9f60fcb063394e47a8f2f2504ff02..1a0fde329fba0d196445caed474c256568e8c4f7 100644
--- a/src/app/app.interceptor.ts
+++ b/src/app/app.interceptor.ts
@@ -84,6 +84,10 @@ export class AuthInterceptor implements HttpInterceptor {
                   label = 'Die übermittelten Objekte sind fehlerhaft!';
                   break;
 
+                case 423:
+                  label = 'Test is gesperrt!';
+                  break;
+
                 case 500:
                   label = 'Allgemeines Server-Problem.';
                   break;