diff --git a/agents/mailfilteragent/mailfilteragent.cpp b/agents/mailfilteragent/mailfilteragent.cpp
index f8b648c66..d000304b5 100644
--- a/agents/mailfilteragent/mailfilteragent.cpp
+++ b/agents/mailfilteragent/mailfilteragent.cpp
@@ -168,7 +168,7 @@ void MailFilterAgent::initialCollectionFetchingDone(KJob *job)
                     changeRecorder()->setCollectionMonitored(collection, true);
                     break;
                 }
-                i++;
+                ++i;
             }
         }
     }