diff --git a/src/main/resources/jenkins/plugins/mattermost/MattermostNotifier/config.jelly b/src/main/resources/jenkins/plugins/mattermost/MattermostNotifier/config.jelly
index 2393cf9..d405c52 100755
--- a/src/main/resources/jenkins/plugins/mattermost/MattermostNotifier/config.jelly
+++ b/src/main/resources/jenkins/plugins/mattermost/MattermostNotifier/config.jelly
@@ -61,6 +61,6 @@
 
         <f:validateButton
                 title="${%Test Connection}" progress="${%Testing...}"
-                method="testConnection" with="mattermostEndpoint,mattermostRoom"/>
+                method="testConnection" with="mattermostEndpoint,mattermostRoom,mattermostIcon"/>
     </f:advanced>
 </j:jelly>