diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 04c6688c9e8a23fc0b626231966a2476164c3900..45bcca3dd35855d36dda49e8bf9fb9c910249636 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,7 +26,7 @@ doxygen:
   tags:
     - documentation
   before_script:
-    - apk update && apk --no-cache add git doxygen graphviz ttf-freefont  texmf-dist texlive texlive-dvi
+    - apk update && apk --no-cache add git doxygen graphviz ttf-freefont texmf-dist texmf-dist-latexextra texlive texlive-dvi
   script:
     - git clone -b feature-aircraftGeometry2 --recurse-submodules https://gitlab-ci-token:${CI_JOB_TOKEN}@git.rwth-aachen.de/unicado/libraries
     - cd libraries/aircraftGeometry2/doc/ && ( cat Doxyfile ; echo "OUTPUT_DIRECTORY = $CI_PROJECT_DIR/docs/modules/" ) | doxygen -