diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1d4fbb4eb2d9ebb079fd2b73a6985b3bffcfe712..a34dd293698e19b150ac2f9c02759070f5e64742 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,7 +34,7 @@ opam:
   # Send a trigger to the repository doing the work
   - curl --fail -X POST -F "token=$OPAM_UPDATE_SECRET" -F "ref=master" -F "variables[REPO]=${CI_PROJECT_URL}.git" -F "variables[REF]=$CI_COMMIT_REF_NAME" -F "variables[SHA]=$CI_COMMIT_SHA" -F "variables[NAME]=$OPAM_PKG" https://gitlab.mpi-sws.org/api/v3/projects/581/trigger/builds
   variables:
-  - OPAM_PKG: "coq-iris"
+    OPAM_PKG: "coq-iris"
   only:
   - master