diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f7e75e1..24a7842 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,9 +1,12 @@
 ---
+variables:
+  NIX_CONFIG: "experimental-features = nix-command flakes recursive-nix"
+
 default:
   tags:
     - nix
   before_script:
-    - nix develop --extra-experimental-features='nix-command flakes'
+    - nix develop
 
 stages:
   - test