diff --git a/kmail/kmsystemtray.cpp b/kmail/kmsystemtray.cpp
index 001453a83..d36bd3e95 100644
--- a/kmail/kmsystemtray.cpp
+++ b/kmail/kmsystemtray.cpp
@@ -493,7 +493,7 @@ void KMSystemTray::updateNewMessages()
    * our last known version, and adjust mCount with that difference */
   else
   {
-    int diff = unread - it.data();
+    int diff = unread - unread_it.data();
     mCount += diff;
   }