diff --git a/ui/app/views/partials/alert/event.similarity.html b/ui/app/views/partials/alert/event.similarity.html
index 8f692170de..e12fc07084 100644
--- a/ui/app/views/partials/alert/event.similarity.html
+++ b/ui/app/views/partials/alert/event.similarity.html
@@ -26,7 +26,7 @@
         <!-- case title and main details -->
         <div class="case-details">
             <div class="case-title">
-                <a ui-sref="app.case.details({caseId: item.id})">#{{item.caseId}} - {{item.title}}</a>
+                <a ui-sref="app.case.details({caseId: item.id})" target="_blank">#{{item.caseId}} - {{item.title}}</a>
             </div>
             <div class="case-tags flexwrap mt-xxs">
                 <span class="mr-xxxs text-muted"><i class="fa fa-tags"></i></span>