diff --git a/3rdparty/fonts/fnt.cxx b/3rdparty/fonts/fnt.cxx
index 9a1a4bd..162ff83 100644
--- a/3rdparty/fonts/fnt.cxx
+++ b/3rdparty/fonts/fnt.cxx
@@ -57,7 +57,7 @@ float fntTexFont::low_putch ( sgVec3 curpos, float pointsize,
 
       //SG_LOG(SG_GUI,SG_ALERT, "UTF8 cc<<4 " << x);
 
-      cc =  (unsigned char) *(s++) ;
+      cc =  (unsigned char) *(c++) ;
 
       //SG_LOG(SG_GUI,SG_ALERT, "UTF81 cc=" << cc);
 
@@ -65,7 +65,7 @@ float fntTexFont::low_putch ( sgVec3 curpos, float pointsize,
 
       int y = (cc & 0x03) << 6 ;
 
-      cc =  (unsigned char) *(s++) ;
+      cc =  (unsigned char) *(c++) ;
 
       //SG_LOG(SG_GUI,SG_ALERT, "UTF82 cc=" << cc);