diff --git a/src/common/htmlescape.cc b/src/common/htmlescape.cc
index 0dcbdc57..ea1c231a 100644
--- a/src/common/htmlescape.cc
+++ b/src/common/htmlescape.cc
@@ -188,7 +188,7 @@ QString fromHtmlEscaped( QString const & str){
 
 string unescapeUtf8( const string &str, bool saveFormat )
 {
-  return string( unescape( QString::fromUtf8( str.c_str(), str.size() ) ).toUtf8().data(), saveFormat );
+  return string( unescape( QString::fromStdString( str ), saveFormat ).toUtf8().data() );
 }
 
 }