diff --git a/pkgs/servers/x11/xorg/default.nix b/pkgs/servers/x11/xorg/default.nix
index 77d68e1d9aab..b1a8c8eccacc 100644
--- a/pkgs/servers/x11/xorg/default.nix
+++ b/pkgs/servers/x11/xorg/default.nix
@@ -1992,7 +1992,7 @@ lib.makeScope newScope (self: with self; {
   }) {};
 
   # THIS IS A GENERATED FILE.  DO NOT EDIT!
-  xdm = callPackage ({ stdenv, pkg-config, fetchurl, libX11, libXau, libXaw, libXdmcp, libXext, libXft, libXinerama, libXmu, libXpm, xorgproto, libXrender, libXt }: stdenv.mkDerivation {
+  xdm = callPackage ({ stdenv, pkg-config, fetchurl, libX11, libXau, libXaw, libXdmcp, libXext, libXft, libXinerama, libXmu, libXpm, libxcrypt, xorgproto, libXrender, libXt }: stdenv.mkDerivation {
     pname = "xdm";
     version = "1.1.12";
     builder = ./builder.sh;
@@ -2003,7 +2003,7 @@ lib.makeScope newScope (self: with self; {
     hardeningDisable = [ "bindnow" "relro" ];
     strictDeps = true;
     nativeBuildInputs = [ pkg-config ];
-    buildInputs = [ libX11 libXau libXaw libXdmcp libXext libXft libXinerama libXmu libXpm xorgproto libXrender libXt ];
+    buildInputs = [ libX11 libXau libXaw libXdmcp libXext libXft libXinerama libXmu libXpm xorgproto libXrender libXt libxcrypt ];
     meta.platforms = lib.platforms.unix;
   }) {};