diff --git a/app/views/shared/issuable/_sidebar.html.haml b/app/views/shared/issuable/_sidebar.html.haml
index 2aada5c9952ecc60665fe8bea2e694b306e119f6..a45775f36b51388a49490496e5fe6d71e24f3d66 100644
--- a/app/views/shared/issuable/_sidebar.html.haml
+++ b/app/views/shared/issuable/_sidebar.html.haml
@@ -47,7 +47,7 @@
 
       .block.milestone
         .sidebar-collapsed-icon
-          = icon('balance-scale')
+          = icon('clock-o')
           %span
             - if issuable.milestone
               = issuable.milestone.title