diff --git a/yabairc b/yabairc
index fde249d..3a577e1 100755
--- a/yabairc
+++ b/yabairc
@@ -46,5 +46,6 @@ yabai -m config window_gap                   8
 
 yabai -m rule --add app="^System Preferences$" manage=off
 yabai -m rule --add app="^App Store$" manage=off
+yabai -m rule --add app="^PCalc$" manage=off
 
 echo "yabai configuration loaded.."