diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e6ee187cb..3f2f28d65 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,5 @@
 nix-shell test:
   script:
+    - env
     - nix-shell --pure --command 'true' -p stdenv && echo success
     - nix-shell --pure --command 'false' -p stdenv || echo success