diff --git a/.ci/build_document.sh b/.ci/build_document.sh
index 725c6db..aa814ed 100755
--- a/.ci/build_document.sh
+++ b/.ci/build_document.sh
@@ -2,7 +2,7 @@ set -e
 echo "Building document"
 make pdf
 mkdir public
-mv build/mainfile.pdf public
-mv build/mainfile.log public
+mv build/$mainfile.pdf public
+mv build/$mainfile.log public
 cd public/
-tree -H '.' -I "index.html" -D --charset utf-8 -T "course" > index.html
+tree -H '.' -I "index.html" -D --charset utf-8 -T "$course" > index.html
diff --git a/config.yaml b/config.yaml
index 195fb21..a90eae0 100644
--- a/config.yaml
+++ b/config.yaml
@@ -1,5 +1,5 @@
-mainfile: 2021_Systemnahe_Programmierung
-course: Systemnahe Programmierung
-stylefile: sysprog
-repo: https://jrpie-notes.gitlab.com/sysprog
-term: 2021/2022
+mainfile='2021_Systemnahe_Programmierung'
+course='Systemnahe Programmierung'
+stylefile='sysprog'
+repo='https://jrpie-notes.gitlab.com/sysprog'
+term='2021/2022'