diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 181d9556a..74d1695e1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,7 +11,7 @@ default:
 variables:
   NIX_PATH: "nixpkgs=http://nixos.org/channels/nixos-21.05/nixexprs.tar.xz"
   AWS_SHARED_CREDENTIALS_FILE: "/etc/aws/credentials"
-  FLAKE: "${CI_REPOSITORY_URL}?ref=${CI_COMMIT_SHA}"
+  FLAKE: "git+${CI_REPOSITORY_URL}?rev=${CI_COMMIT_SHA}"
   
 stages:
   - frontend:build