diff --git a/kouncil-frontend/libs/feat-clusters/src/lib/cluster-form/cluster-form-util.ts b/kouncil-frontend/libs/feat-clusters/src/lib/cluster-form/cluster-form-util.ts
index 66943f86..e3d8983c 100644
--- a/kouncil-frontend/libs/feat-clusters/src/lib/cluster-form/cluster-form-util.ts
+++ b/kouncil-frontend/libs/feat-clusters/src/lib/cluster-form/cluster-form-util.ts
@@ -25,7 +25,7 @@ export class ClusterFormUtil {
 
   public static noWhitespaces(): ValidatorFn {
     return (control: AbstractControl): ValidationErrors | null => {
-      return control.value?.length === 0 || (control.value || '').trim().length ? null : {incorrectValue: true};
+      return control.value === null || control.value?.length === 0 || (control.value || '').trim().length ? null : {incorrectValue: true};
     };
   }
 }