diff --git a/Makefile b/Makefile
index 467e4a92..33ede8bd 100644
--- a/Makefile
+++ b/Makefile
@@ -40,11 +40,6 @@ gc:
 	# garbage collect all unused nix store entries
 	sudo nix store gc --debug
 
-# adjust brightness(x11)
-# usage: make bright b=0.9
-bright:
-	xrandr --output DP-2 --brightness $(b)
-
 ############################################################################
 #
 #  Darwin related commands, harmonica is my macbook pro's hostname