diff --git a/src/frontend/app/administration/entity/entities-administration.component.html b/src/frontend/app/administration/entity/entities-administration.component.html
index f4b63f012d88e547048acf337c726fe2d01e4f1d..91a38b1444e231a77fe564aa4c497ddd074b9923 100755
--- a/src/frontend/app/administration/entity/entities-administration.component.html
+++ b/src/frontend/app/administration/entity/entities-administration.component.html
@@ -87,7 +87,7 @@
                                 <div class="col-sm-12">
                                     <mat-form-field>
                                         <input matInput [(ngModel)]="currentEntity.entity_id" required name="entity_id" id="entity_id" title="{{lang.id}}" type="text"
-                                            placeholder="{{lang.id}}" [disabled]="!creationMode" maxlength="32" pattern="^[\w.-]*$">
+                                            placeholder="{{lang.id}}" [disabled]="!creationMode" maxlength="32" pattern="^[\w-]*$">
                                     </mat-form-field>
                                 </div>
                             </div>