diff --git a/akonadi/transportresourcebase.h b/akonadi/transportresourcebase.h
index 2b08532e4..2c66d163a 100644
--- a/akonadi/transportresourcebase.h
+++ b/akonadi/transportresourcebase.h
@@ -1,81 +1,81 @@
 /*
     Copyright (c) 2009 Constantin Berzan <exit3219@gmail.com>
 
     This library is free software; you can redistribute it and/or modify it
     under the terms of the GNU Library General Public License as published by
     the Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.
 
     This library is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
     License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to the
     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
     02110-1301, USA.
 */
 
 #ifndef AKONADI_TRANSPORTRESOURCEBASE_H
 #define AKONADI_TRANSPORTRESOURCEBASE_H
 
 #include "akonadi_export.h"
 
-#include <QString>
+#include <QtCore/QString>
 
 #include <akonadi/item.h>
 
 class KJob;
 
 namespace Akonadi {
 
 class TransportResourceBasePrivate;
 
 /**
   * @short Resource implementing mail transport capability.
   *
   * To implement a transport-enabled resource, inherit from both
   * ResourceBase and TransportResourceBase, implement the virtual method
   * sendItem(), and call emitTransportResult() when finished sending.
   * The resource must also have the "MailTransport" capability flag.
   *
   * For an example of a transport-enabled resource, see
   * kdepim/akonadi/resources/mailtransport_dummy.
   *
   * @author Constantin Berzan <exit3219@gmail.com>
   * @since 4.4
  */
 class AKONADI_EXPORT TransportResourceBase
 {
   public:
     TransportResourceBase();
     virtual ~TransportResourceBase();
 
     /**
       Reimplement in your resource, to begin the actual sending operation.
       Call emitTransportResult() when finished.
       @param message The ID of the message to be sent.
       @see emitTransportResult.
     */
     virtual void sendItem( Akonadi::Item::Id message ) = 0;
 
     // TODO add void emitSendProgress( int percent );
 
     /**
      * Emits the transportResult() DBus signal with the given arguments.
      * @param item The id of the item that was sent.
      * @param success True if the sending operation succeeded.
      * @param message An optional textual explanation of the result.
      * @see Transport.
      */
     void emitTransportResult( Akonadi::Item::Id &item, bool success,
                               const QString &message = QString() );
 
   private:
     TransportResourceBasePrivate *const d;
 };
 
 } // namespace Akonadi
 
 #endif // AKONADI_TRANSPORTRESOURCEBASE_H