diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 649608c..78f60d8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,6 +36,7 @@ nonfree-build-job:
     - buildah-exec
   image: git.hyperreal.coffee:5050/fedora-atomic/containers/buildah:latest
   variables:
+    STORAGE_DRIVER: overlay2
     BUILDAH_FORMAT: docker
     BUILDAH_ISOLATION: chroot
     FQ_IMAGE_NAME: "$CI_REGISTRY_IMAGE/vauxite-nonfree:39"