diff --git a/projects/common/id.service.ts b/projects/common/id.service.ts
index 1ac383e16c8a501315dbffcac493df7a1a350704..96dc540ba15427b082dcef4ebbb3dbafcffc546b 100644
--- a/projects/common/id.service.ts
+++ b/projects/common/id.service.ts
@@ -28,6 +28,9 @@ export class IdService {
   }
 
   getNewID(type: string): string {
+    if (!type) {
+      throw Error('ID-Service: No type given!');
+    }
     do {
       this.idCounter[type] += 1;
     }