diff --git a/nin/source.nix b/nin/source.nix
index 5b2caec54..9fb2cb390 100644
--- a/nin/source.nix
+++ b/nin/source.nix
@@ -17,5 +17,6 @@ in
       nin = "/home/nin/secrets/${name}";
     };
     stockholm.file = toString <stockholm>;
+    stockholm-version.pipe = "${pkgs.stockholm}/bin/get-version";
     nixpkgs = (import <stockholm/krebs/source.nix> host).nixpkgs;
   }