diff --git a/nix/gitlab-ci/default.nix b/nix/gitlab-ci/default.nix
index 109c4f5120..04d9181398 100644
--- a/nix/gitlab-ci/default.nix
+++ b/nix/gitlab-ci/default.nix
@@ -23,6 +23,7 @@ let
       script = [
         "nix run -f ./ third_party.nixpkgs.bash -c ./hack/populate_secrets.sh"
         "nix-instantiate ./ci-root-linux.nix --option substituters \"https://cache.nixos.org/ s3://lukegb-nix-cache?endpoint=storage.googleapis.com&trusted=1\" > drv-name"
+        "cat drv-name"
         "ln -s $(cat drv-name) ./result"
         "nix run -f ./ go.nix.bcacheup -c bcacheup --cache_url vaultgs://lukegb-nix-cache --vault_addr unix:///run/tokend/sock --vault_token_source gcp/roleset/binary-cache-deployer/token ./result"
       ];
@@ -38,6 +39,7 @@ let
       needs = [{ job = "nixCache-linux-eval"; artifacts = true; }];
       script = [
         "nix-store --realise $(cat drv-name) --option substituters \"https://cache.nixos.org/ s3://lukegb-nix-cache?endpoint=storage.googleapis.com&trusted=1\""
+        "readlink -f ./result"
         "nix run -f ./ go.nix.bcacheup -c bcacheup --cache_url vaultgs://lukegb-nix-cache --vault_addr unix:///run/tokend/sock --vault_token_source gcp/roleset/binary-cache-deployer/token ./result"
         "cat ./result/combined-systems > systems.json"
       ];