diff --git a/src/opnsense/mvc/app/models/OPNsense/Core/Menu/Menu.xml b/src/opnsense/mvc/app/models/OPNsense/Core/Menu/Menu.xml
index 73bf73a01..eefc36683 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Core/Menu/Menu.xml
+++ b/src/opnsense/mvc/app/models/OPNsense/Core/Menu/Menu.xml
@@ -87,7 +87,7 @@
         </Diagnostics>
     </System>
     <Interfaces order="30" cssClass="fa fa-sitemap"/>
-    <Firewall order="40" cssClass="glyphicon glyphicon-fire">
+    <Firewall order="40" cssClass="fa fa-fire">
         <Aliases url="/ui/firewall/alias" cssClass="fa fa-list-alt fa-fw">
             <Edit url="/ui/firewall/alias/*" visibility="hidden"/>
         </Aliases>