diff --git a/common/packages.nix b/common/packages.nix
index f339e4e..e9f73d0 100644
--- a/common/packages.nix
+++ b/common/packages.nix
@@ -97,6 +97,7 @@ in
     (lib.mkIf config.vacu.isDev ''
       cargo
       gnumake
+      man-pages
       patchelf
       python3
       ruby
diff --git a/mk-generated.sh b/mk-generated.sh
index 3bf4af7..ce5c40f 100755
--- a/mk-generated.sh
+++ b/mk-generated.sh
@@ -1,3 +1,4 @@
 #!/usr/bin/env bash
-repo="$(readlink -f "$(dirname "$0")")"
+set -euo pipefail
+repo="$(readlink -f -- "$(dirname -- "$0")")"
 nix build "$repo"#generated --out-link "$repo"/.generated "$@"