diff --git a/src/applications/project/storage/PhabricatorProjectTransaction.php b/src/applications/project/storage/PhabricatorProjectTransaction.php
index e5e353fea5..fb9a25eda6 100644
--- a/src/applications/project/storage/PhabricatorProjectTransaction.php
+++ b/src/applications/project/storage/PhabricatorProjectTransaction.php
@@ -126,7 +126,7 @@ final class PhabricatorProjectTransaction
           return 'fa-unlock';
         }
       case self::TYPE_ICON:
-        return 'fa-'.$new;
+        return PhabricatorProjectIconSet::getIconIcon($new);
       case self::TYPE_IMAGE:
         return 'fa-photo';
       case self::TYPE_MEMBERS: