diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ebb60f3f617e86819e59a3d7987c713d55657687..0c3f452d4a7fbe79e5026492755512ebf3eef4b3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ variables:
   cache:
     key: "$CI_JOB_NAME"
     paths:
-    - opamroot/
+    - _opam/
   only:
   - master
   - /^ci/