diff --git a/app/assets/javascripts/discourse/templates/user.hbs b/app/assets/javascripts/discourse/templates/user.hbs
index a5858926760..f501a8103a8 100644
--- a/app/assets/javascripts/discourse/templates/user.hbs
+++ b/app/assets/javascripts/discourse/templates/user.hbs
@@ -53,7 +53,7 @@
             <ul>
               {{#if model.can_send_private_message_to_user}}
               <li>
-                <a class='btn btn-primary' {{action "composePrivateMessage" model}}>
+                <a class='btn btn-primary compose-pm' {{action "composePrivateMessage" model}}>
                   {{d-icon "envelope"}}
                   {{i18n 'user.private_message'}}
                 </a>