diff --git a/nix/installer.nix b/nix/installer.nix
index 7b55d55..8ed0157 100644
--- a/nix/installer.nix
+++ b/nix/installer.nix
@@ -23,6 +23,7 @@ in
   boot.zfs.removeLinuxDRM = lib.mkDefault pkgs.hostPlatform.isAarch64;
 
   documentation.enable = false;
+  documentation.man.man-db.enable = false;
 
   environment.systemPackages = [
     # for zapping of disko