diff --git a/source/tools/i18n/check_translations.py b/source/tools/i18n/check_translations.py
index 30f3c0931f..bf23d263fb 100755
--- a/source/tools/i18n/check_translations.py
+++ b/source/tools/i18n/check_translations.py
@@ -26,7 +26,7 @@ from pathlib import Path
 from typing import Generator, List, Tuple
 
 import click
-from click import UsageError
+from click import ClickException
 from dennis.linter import ERROR, LintedEntry, Linter, LintMessage, LintRule, get_lint_rules
 from dennis.templatelinter import TemplateLinter
 from dennis.templatelinter import get_lint_rules as get_template_lint_rules
@@ -241,7 +241,7 @@ def run(
         files_to_check = po_files
 
     if len(files_to_check) == 0:
-        raise UsageError("Found no files to check.")
+        raise ClickException("Found no files to check.")
 
     return lint_files(files_to_check), len(files_to_check)
 
@@ -250,7 +250,11 @@ def run(
 @click.option("--locale", help="Only check translations for the given locale")
 @click.argument("files", nargs=-1, type=click.Path(exists=True, resolve_path=True, path_type=Path))
 def cli(locale, files):
-    """CLI entry point."""
+    """Lint PO- and POT-files.
+
+    Provide one or multiple FILES to check. If omitted all files in
+    the project will be checked.
+    """
     lint_results, num_checked_files = run(locale, files)
     print_results(lint_results, num_checked_files)