diff --git a/default.nix b/default.nix
index 4ce3499..27e9147 100644
--- a/default.nix
+++ b/default.nix
@@ -45,6 +45,8 @@ let
 
   customModule = {
     environment.systemPackages = [ autoInstall pkgs.git ];
+    documentation.info.enable = false; # https://github.com/NixOS/nixpkgs/issues/124215
+    documentation.man.enable = false;
     nix.settings.trusted-public-keys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
     nix.settings.substituters = ["https://nixbld.m-labs.hk?priority=10"];
   };