diff --git a/pyroot/src/Utility.cxx b/pyroot/src/Utility.cxx
index 91603161bae666b652e713b8221fa14ac99e7942..57e4209465eff4532daa64be2bc78a9f8595c5bb 100644
--- a/pyroot/src/Utility.cxx
+++ b/pyroot/src/Utility.cxx
@@ -300,7 +300,7 @@ void PyROOT::Utility::ErrMsgCallback( char* msg )
       return;
 
 // get file name and line number
-   char* errFile = G__stripfilename( G__get_ifile()->name );
+   char* errFile = (char*)G__stripfilename( G__get_ifile()->name );
    int errLine = G__get_ifile()->line_number;
 
 // ignore ROOT-style FILE/LINE messages