diff --git a/src/app/task-form/task-form.component.ts b/src/app/task-form/task-form.component.ts
index 602ef0c..7f2aa19 100644
--- a/src/app/task-form/task-form.component.ts
+++ b/src/app/task-form/task-form.component.ts
@@ -29,7 +29,11 @@ export class TaskFormComponent implements OnInit {
         if (this.task !== null && this.task !== undefined) {
             this.task.title = this.title;
             this.task.content = this.content;
-            this.backendService.putTask(this.task);
+            this.backendService.putTask(this.task).subscribe(response => {
+                if (response.status > 399) {
+                  alert('Fehler');
+                }
+              });
         }
         else {
             this.task = { title: this.title, content: this.content };