diff --git a/akonadi/itemsearchjob.h b/akonadi/itemsearchjob.h
index aaba51f20..845ee1301 100644
--- a/akonadi/itemsearchjob.h
+++ b/akonadi/itemsearchjob.h
@@ -1,93 +1,93 @@
 /*
     Copyright (c) 2009 Tobias Koenig <tokoe@kde.org>
 
     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_ITEMSEARCHJOB_H
 #define AKONADI_ITEMSEARCHJOB_H
 
 #include <akonadi/item.h>
 #include <akonadi/job.h>
 
 namespace Akonadi {
 
 class ItemSearchJobPrivate;
 
 /**
  * @short Job that searches for items in the Akonadi storage.
  *
  * This job searches for items that match a given search query and returns
  * the list of item ids.
  *
  * @code
  *
  * const QString query = "..."; // some sparql query
  *
  * Akonadi::ItemSearchJob *job = new Akonadi::ItemSearchJob( query );
  * connect( job, SIGNAL( result( KJob* ) ), this, SLOT( searchResult( KJob* ) ) );
  *
  * ...
  *
  * MyClass::searchResult( KJob *job )
  * {
  *   Akonadi::ItemSearchJob *searchJob = qobject_cast<Akonadi::ItemSearchJob*>( job );
  *   const Akonadi::Item::List items = searchJob->items();
  *   foreach ( const Akonadi::Item &item, items ) {
  *     // fetch the full payload of 'item'
  *   }
  * }
  *
  * @endcode
  *
  * @author Tobias Koenig <tokoe@kde.org>
  */
 class AKONADI_EXPORT ItemSearchJob : public Job
 {
   Q_OBJECT
 
   public:
     /**
      * Creates an item search job.
      *
      * @param query The search query in SPARQL format.
      * @param parent The parent object.
      */
-    ItemSearchJob( const QString &query, QObject *parent = 0 );
+    explicit ItemSearchJob( const QString &query, QObject *parent = 0 );
 
     /**
      * Destroys the item search job.
      */
     ~ItemSearchJob();
 
     /**
      * Returns the items that matched the search query.
      *
      * @note The items only contain the uid but no payload.
      */
     Item::List items() const;
 
   protected:
     void doStart();
     virtual void doHandleResponse( const QByteArray &tag, const QByteArray &data );
 
   private:
     Q_DECLARE_PRIVATE( ItemSearchJob )
 };
 
 }
 
 #endif