diff --git a/Makefile b/Makefile
index 893953b1..b193661f 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,6 @@ gc:
 	sudo nix-collect-garbage --delete-older-than 14d
 
 darwin-set-proxy:
-	# set proxy for nix-daemon to speed up downloads
-	# https://github.com/NixOS/nix/issues/1472#issuecomment-1532955973
 	sudo python3 scripts/darwin_set_proxy.py
 
 darwin: darwin-set-proxy
diff --git a/scripts/darwin_set_proxy.py b/scripts/darwin_set_proxy.py
index 90881c1a..fd946126 100644
--- a/scripts/darwin_set_proxy.py
+++ b/scripts/darwin_set_proxy.py
@@ -1,3 +1,7 @@
+"""
+  set proxy for nix-daemon to speed up downloads
+  https://github.com/NixOS/nix/issues/1472#issuecomment-1532955973
+"""
 import os
 import plistlib
 import shlex