diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5c2acf130083a825c2058dc2f9bd6f78e2f28709..e1b51c2f2d6d7252af514a65bf6325d541d40bc1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@ generate pdf:
     entrypoint: [ "" ]
   stage: build
   script:
-    - pandoc --pdf-engine=lualatex --metadata-file=metadata.yml solutions/* -o solutions.pdf
+    - pandoc --pdf-engine=lualatex --metadata-file=metadata.yaml solutions/* -o solutions.pdf
   artifacts:
     paths:
       - solutions.pdf
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