diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 17f3783..c3e2684 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,6 @@
 build:
   script:
+    - file src/main/resources/language/translation_de.properties | rg UTF-8
     - mvn -Dmaven.repo.local=/tmp/m2/repository -Duser.home=/tmp checkstyle:check jacoco:prepare-agent test jacoco:report
     - python3 /opt/cover2cover.py target/site/jacoco/jacoco.xml src/main/java > target/site/cobertura.xml
     - python3 /opt/source2filename.py target/site/cobertura.xml