diff --git a/pkgs/tools/security/sudo/default.nix b/pkgs/tools/security/sudo/default.nix
index d6d979c9914d..840d24f6e67d 100644
--- a/pkgs/tools/security/sudo/default.nix
+++ b/pkgs/tools/security/sudo/default.nix
@@ -15,6 +15,7 @@ stdenv.mkDerivation rec {
   };
 
   prePatch = ''
+    # do not set sticky bit in nix store
     substituteInPlace src/Makefile.in --replace 04755 0755
   '';