diff --git a/flake.nix b/flake.nix
index 0d0db69594dc1e0b491ec8506d14d7a5bc196354..bb311d2e0b2729fbebfb7fdd7e099526f3c70c5f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,10 +33,13 @@
     
     versionAndBuild = pkgs.runCommand "get-version-and-build" {
         outputFiles = [ "version" "build" ];
-    } ''
-    ls -lah ${versionToolPackage}/bin/
+    } ''    
+    set -x
+        mkdir -p $out
+        ls -lah $out
         ${versionToolPackage}/bin/version print --git > $out/version
         ${versionToolPackage}/bin/version build > $out/build
+        ls -lah $out
     '';
 
     version = builtins.readFile "${versionAndBuild}/version";