diff --git a/src/diff.cpp b/src/diff.cpp
index 2bf58eb..fba2c1a 100644
--- a/src/diff.cpp
+++ b/src/diff.cpp
@@ -241,7 +241,8 @@ void SourceData::setData( const TQString& data )
    }
 
    FileAccess f( m_tempInputFileName );
-   bool bSuccess = f.writeFile( TQTextCodec::codecForName("UTF-8")->fromUnicode(data), data.length() );
+   TQCString cData = TQTextCodec::codecForName("UTF-8")->fromUnicode(data);
+   bool bSuccess = f.writeFile( cData, cData.length() );
    if ( !bSuccess )
    {
       KMessageBox::error( m_pOptionDialog, i18n("Writing clipboard data to temp file failed.") );