diff --git a/popaccount.cpp b/popaccount.cpp
index 7973b8f92..863e547a2 100644
--- a/popaccount.cpp
+++ b/popaccount.cpp
@@ -507,7 +507,7 @@ void PopAccount::slotJobFinished() {
     // if there are mails which should be checkedc download the headers
     if ( ( mHeadersOnServer.count() > 0 ) && ( mFilterOnServer == true ) ) {
       KURL url = getUrl();
-      QByteArray headerIds = mHeadersOnServer[0]->id();
+      QString headerIds = mHeadersOnServer[0]->id();
       for ( int i = 1; i < mHeadersOnServer.count(); ++i ) {
         headerIds += ',';
         headerIds += mHeadersOnServer[i]->id();