diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f6f335c1..ddb6d21e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -155,6 +155,15 @@ yarn lint:
     - apk add --no-cache git
     - yarn lint
 
+translations lint:
+  image: alpine
+  stage: prepare
+  before_script:
+    - apk add gettext
+  script:
+    - find resources/lang -type f -name '*.po' -exec sh -c 'msgfmt "${1%.*}.po" -o"${1%.*}.mo"' shell {} \;
+    - '[[ $(find resources/lang -type f -name "*.po" | wc -l) == $(find resources/lang -type f -name "*.mo" | wc -l) ]]'
+
 #
 # Build
 #
@@ -177,6 +186,7 @@ build-image:
     - composer validate
     - yarn check
     - yarn lint
+    - translations lint
     - generate-version
   dependencies:
     - generate-version
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 6e5a7f3b..49f8ed05 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -72,7 +72,7 @@ docker compose exec es_workspace yarn build
 docker compose exec -e THEMES=0,1 es_workspace yarn build
 
 # Update the translation files
-docker compose exec es_workspace find /var/www/resources/lang -type f -name '*.po' -exec sh -c 'file="{}"; msgfmt "${file%.*}.po" -o "${file%.*}.mo"' \;
+docker compose exec es_workspace find /var/www/resources/lang -type f -name '*.po' -exec sh -c 'msgfmt "${1%.*}.po" -o"${1%.*}.mo"' shell {} \;
 
 # Run the migrations
 docker compose exec es_workspace bin/migrate
@@ -118,7 +118,7 @@ The following instructions explain how to get, build and run the latest Engelsys
     ```
 * Generate translation files
   ```bash
-  find resources/lang/ -type f -name '*.po' -exec sh -c 'file="{}"; msgfmt "${file%.*}.po" -o "${file%.*}.mo"' \;
+  find resources/lang/ -type f -name '*.po' -exec sh -c 'msgfmt "${1%.*}.po" -o"${1%.*}.mo"' shell {} \;
   ```
 
 ## Testing
diff --git a/bin/pre-commit b/bin/pre-commit
index 8049b2d1..252b9298 100755
--- a/bin/pre-commit
+++ b/bin/pre-commit
@@ -3,10 +3,24 @@
 # immediate exit after an error
 set -e
 
+testing() {
+    echo
+    echo "🔎 Checking ${1}"
+}
+
+testing 'JS & CSS 🎨'
 yarn check
 yarn lint
 
+testing 'PHP ⚙️'
 composer validate
 composer phpcs
 composer phpstan
 ./vendor/bin/phpunit
+
+testing 'translations 🗺️'
+find resources/lang -type f -name '*.po' -exec sh -c 'msgfmt "${1%.*}.po" -o"${1%.*}.mo"' shell {} \;
+[ "$(find resources/lang -type f -name '*.po' | wc -l)" -eq "$(find resources/lang -type f -name '*.mo' | wc -l)" ]
+find resources/lang -type f -name '*.mo' -exec rm {} \;
+
+echo '✅ Done 🎉'
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 097fa96e..8af6ae34 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -8,7 +8,7 @@ RUN composer --no-ansi dump-autoload --optimize
 FROM alpine AS translation
 RUN apk add gettext
 COPY resources/lang/ /data
-RUN find /data -type f -name '*.po' -exec sh -c 'file="{}"; msgfmt "${file%.*}.po" -o "${file%.*}.mo"' \;
+RUN find /data -type f -name '*.po' -exec sh -c 'msgfmt "${1%.*}.po" -o"${1%.*}.mo"' shell {} \;
 
 # Build the themes
 FROM node:20-alpine AS themes
diff --git a/resources/lang/de_DE/additional.po b/resources/lang/de_DE/additional.po
index 65472519..870ccf6b 100644
--- a/resources/lang/de_DE/additional.po
+++ b/resources/lang/de_DE/additional.po
@@ -52,9 +52,6 @@ msgstr "Bitte gib eine E-Mail-Adresse an."
 msgid "validation.email.email"
 msgstr "Die E-Mail-Adresse ist nicht gültig."
 
-msgid "validation.password.length"
-msgstr "Dein neues Passwort ist zu kurz."
-
 msgid "validation.new_password.length"
 msgstr "Dein neues Passwort ist zu kurz."
 
diff --git a/resources/lang/de_DE/default.po b/resources/lang/de_DE/default.po
index 8168951a..fd48cc5a 100644
--- a/resources/lang/de_DE/default.po
+++ b/resources/lang/de_DE/default.po
@@ -1095,18 +1095,12 @@ msgstr "Engel:"
 msgid "Date, Duration:"
 msgstr "Termin, Dauer:"
 
-msgid "Location:"
-msgstr "Ort:"
-
 msgid "Title:"
 msgstr "Titel:"
 
 msgid "Type:"
 msgstr "Typ:"
 
-msgid "Location"
-msgstr "Ort"
-
 msgid "created at %s by %s"
 msgstr "erstellt am %s von %s"
 
@@ -1904,9 +1898,6 @@ msgid "angeltypes.hide_on_shift_view.info"
 msgstr "Wenn ausgewählt, können nur Admins und Mitglieder des Engeltyps auf der "
 "Schicht Seite die Filteroption für diesen Engeltyp sehen."
 
-msgid "registration.register"
-msgstr "Registrieren"
-
 msgid "location.locations"
 msgstr "Orte"
 
diff --git a/resources/lang/en_US/additional.po b/resources/lang/en_US/additional.po
index a7625778..7bc4a8e2 100644
--- a/resources/lang/en_US/additional.po
+++ b/resources/lang/en_US/additional.po
@@ -50,9 +50,6 @@ msgstr "The e-mail address is required."
 msgid "validation.email.email"
 msgstr "This e-mail address is not valid."
 
-msgid "validation.password.length"
-msgstr "Your new password is too short."
-
 msgid "validation.new_password.length"
 msgstr "Your new password is too short."
 
diff --git a/resources/lang/en_US/default.po b/resources/lang/en_US/default.po
index d2d4763d..17045da4 100644
--- a/resources/lang/en_US/default.po
+++ b/resources/lang/en_US/default.po
@@ -670,9 +670,6 @@ msgstr "Event data"
 msgid "registration.what_todo"
 msgstr "What do you want to do?"
 
-msgid "registration.register"
-msgstr "Register"
-
 msgid "tshirt.required.hint"
 msgstr "Please specify a T-shirt size in your settings!"