diff --git a/3rdparty/fonts/fnt.cxx b/3rdparty/fonts/fnt.cxx
index beb842b..05197ba 100644
--- a/3rdparty/fonts/fnt.cxx
+++ b/3rdparty/fonts/fnt.cxx
@@ -199,7 +199,7 @@ void fntTexFont::getBBox ( const char *s,
 
       SG_LOG(SG_GUI,SG_ALERT, "UTF81 cc=" << cc);
 
-      x= x + (cc>>2) & 0x0F;
+      x= x + ((cc>>2) & 0x0F);
 
       int y = (cc & 0x03) * 0X3F;