diff --git a/src/frontend/app/administration/user/users-administration.component.html b/src/frontend/app/administration/user/users-administration.component.html
index c9b72ac50dfd248d58d30e9eae36502ab0669b5d..c9ae5958bc8e52cde4e5d6f1ef22b093dd43702d 100755
--- a/src/frontend/app/administration/user/users-administration.component.html
+++ b/src/frontend/app/administration/user/users-administration.component.html
@@ -105,7 +105,7 @@
                                     (click)="$event.stopPropagation();activateUser(element)">
                                     <mat-icon class="fa fa-check fa-2x" aria-hidden="true"></mat-icon>
                                 </button>
-                                <button mat-icon-button color="warn" [disabled]="element.id===user.id || ['root_visible', 'root_invisible'].indexOf(row.mode) > -1"
+                                <button mat-icon-button color="warn" [disabled]="element.id===user.id || ['root_visible', 'root_invisible'].indexOf(element.mode) > -1"
                                     matTooltip="{{lang.delete}}" data-toggle="modal" data-target="#changeDiffListDest"
                                     (click)="$event.stopPropagation();deleteUser(element, 'delete')">
                                     <mat-icon class="fa fa-trash-alt fa-2x"></mat-icon>