diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 12d9e97..2f171f0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,7 +50,7 @@ derive:
   script:
   - docker build --build-arg DEVUAN_VERSION="$DEVUAN_VERSION"
            --tag "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
-           --file buildd.df
+           --file buildd.df .
   - docker push "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
   - docker tag  "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
                 "$CI_REGISTRY_IMAGE"/buildd