diff --git a/projects/common/components/input-elements/dropdown.component.ts b/projects/common/components/input-elements/dropdown.component.ts
index ee33d1257b9d6245c502f397e9707c9a74d6257e..865074db80cfee14d6c20486d17888ae6722bf11 100644
--- a/projects/common/components/input-elements/dropdown.component.ts
+++ b/projects/common/components/input-elements/dropdown.component.ts
@@ -19,7 +19,7 @@ import { FormElementComponent } from '../../directives/form-element-component.di
         {{$any(elementModel).label}}
       </mat-label>
       <mat-select [formControl]="elementFormControl" [value]="elementModel.value">
-        <mat-option *ngIf="elementModel.allowUnset" value=""
+        <mat-option *ngIf="elementModel.allowUnset" [value]="null"
                     [style.pointer-events]="elementModel.readOnly ? 'none' : 'unset'"
                     (click)="$event.preventDefault()">
         </mat-option>