diff --git a/src/codecs/postingcodec.cpp b/src/codecs/postingcodec.cpp
index 7a01fa2a..13cd7415 100644
--- a/src/codecs/postingcodec.cpp
+++ b/src/codecs/postingcodec.cpp
@@ -1,44 +1,44 @@
 /*
    This file is part of the KDE Baloo project.
  * Copyright (C) 2015  Vishesh Handa <vhanda@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
 #include "postingcodec.h"
 
 using namespace Baloo;
 
 PostingCodec::PostingCodec()
 {
 }
 
 QByteArray PostingCodec::encode(const QVector<quint64>& list)
 {
     uint size = list.size() * sizeof(quint64);
-    char* ptr = reinterpret_cast<char*>(const_cast<quint64*>(list.constData()));
+    const char* ptr = reinterpret_cast<const char*>(list.constData());
 
     return QByteArray(ptr, size);
 }
 
 QVector<quint64> PostingCodec::decode(const QByteArray& arr)
 {
     QVector<quint64> vec;
     vec.resize(arr.size() / sizeof(quint64));
 
-    memcpy(vec.data(), arr.data(), arr.size());
+    memcpy(vec.data(), arr.constData(), arr.size());
     return vec;
 }