diff --git a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
index c0f983e6d0..fbbce2a469 100644
--- a/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
+++ b/ui-ngx/src/app/modules/home/components/alarm/alarm-assignee-panel.component.html
@@ -42,7 +42,7 @@
       <div class="user-display-name flex flex-col gap-0.5">
         <span *ngIf="user.firstName || user.lastName"
               [innerHTML]="getFullName(user) | highlight:searchText"></span>
-        <span [innerHTML]="user.email | highlight:searchText"></span>
+        <span [innerHTML]="user.email | highlight:searchText" tbTruncateWithTooltip></span>
       </div>
     </mat-option>
     <mat-option *ngIf="!(filteredUsers | async)?.length" [value]="null" class="tb-not-found">