diff --git a/pkgs/default.nix b/pkgs/default.nix
index 639b6b2..db178c1 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -20,7 +20,5 @@ let self = {
 
   pinned = import ./pinned.nix;
 
-  lib = import ./lib.nix { inherit (pkgs) lib; };
-
   modulesPkgs = self // self.pinned;
 }; in self
diff --git a/pkgs/lib.nix b/pkgs/lib.nix
deleted file mode 100644
index 43dbe45..0000000
--- a/pkgs/lib.nix
+++ /dev/null
@@ -1,5 +0,0 @@
-{ lib }:
-{
-  # An address type that checks that there's no port
-  ipv4Address = lib.types.addCheck lib.types.str (s: builtins.length (builtins.split ":" s) == 1);
-}