diff --git a/bin/generate_l10n.php b/bin/generate_l10n.php
index 1fb6b5c..e8e666b 100644
--- a/bin/generate_l10n.php
+++ b/bin/generate_l10n.php
@@ -1,4 +1,10 @@
 <?php
+/**
+ * Generates l10n files using Yaml.
+ *
+ * Usage:
+ *   php bin/generate_l10n.php
+ */
 
 function generateJsContent($translations)
 {