diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8fc6ae8386ea01379f02a56bb06d4438fbbce909..8e82fc715fe3aba030ed7dba48d010ea4911b6c0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ variables:
   cache:
     key: "$CI_JOB_NAME"
     paths:
-    - opamroot/
+    - _opam/
   only:
   - /^master/@iris/iris
   - /^ci/@iris/iris