diff --git a/src/xmlpatterns/api/qcoloroutput_p.h b/src/xmlpatterns/api/qcoloroutput_p.h
index 864b90d99111d5b258e4627cb6cb67190d870633..f02a4506a58f5f24129a06b07ddaf383b292a3d4 100644
--- a/src/xmlpatterns/api/qcoloroutput_p.h
+++ b/src/xmlpatterns/api/qcoloroutput_p.h
@@ -70,8 +70,8 @@ namespace QPatternist
             ForegroundShift = 10,
             BackgroundShift = 20,
             SpecialShift    = 20,
-            ForegroundMask  = ((1 << ForegroundShift) - 1) << ForegroundShift,
-            BackgroundMask  = ((1 << BackgroundShift) - 1) << BackgroundShift
+            ForegroundMask  = 0x1f << ForegroundShift,
+            BackgroundMask  = 0x7 << BackgroundShift
         };
 
     public: