diff --git a/src/XMonad/Custom/SystemKeyBindings.hs b/src/XMonad/Custom/SystemKeyBindings.hs
index e891b13..025a833 100644
--- a/src/XMonad/Custom/SystemKeyBindings.hs
+++ b/src/XMonad/Custom/SystemKeyBindings.hs
@@ -5,7 +5,7 @@ import XMonad
 import XMonad.Custom.BindingUtils
 
 mySystemKeyBindings :: [([Char], X ())]
-mySystemKeyBindings = addSubMapKey mySystemKey $ [
+mySystemKeyBindings = addMainModifierToBinding . addSubMapKey mySystemKey $ [
     ("p", spawn "poweroff"),
     ("r", systemctl "reboot"),
     ("l", i3lock),