diff --git a/pkgs/top-level/build-for-release.nix b/pkgs/top-level/build-for-release.nix
index b31de022e38..6092d274be7 100644
--- a/pkgs/top-level/build-for-release.nix
+++ b/pkgs/top-level/build-for-release.nix
@@ -93,6 +93,7 @@ let
       libtool
       libxml2
       libxslt
+      lout
       lvm2
       lynx
       man