diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b3f4da6..599724c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 variables:
   # https://hub.docker.com/r/alpine/git/tags
   GIT_VERSION: v2.30.1
+  FILE_NAME: presentation
 
 .git:push:
   after_script:
@@ -50,7 +51,6 @@ build_tex:
   #     - "./*.tex"
   #     - "./**/*.tex"
   script:
-    - FILE_NAME="presentation"
     - pdflatex --shell-escape $FILE_NAME.tex
     - biber $FILE_NAME
     - pdflatex --shell-escape $FILE_NAME.tex