diff --git a/plugins/c13y_upgrade/language/hr-HR/description.txt b/plugins/c13y_upgrade/language/hr_HR/description.txt
similarity index 100%
rename from plugins/c13y_upgrade/language/hr-HR/description.txt
rename to plugins/c13y_upgrade/language/hr_HR/description.txt
diff --git a/plugins/c13y_upgrade/language/hr-HR/index.php b/plugins/c13y_upgrade/language/hr_HR/index.php
similarity index 100%
rename from plugins/c13y_upgrade/language/hr-HR/index.php
rename to plugins/c13y_upgrade/language/hr_HR/index.php
diff --git a/plugins/c13y_upgrade/language/hr-HR/plugin.lang.php b/plugins/c13y_upgrade/language/hr_HR/plugin.lang.php
similarity index 100%
rename from plugins/c13y_upgrade/language/hr-HR/plugin.lang.php
rename to plugins/c13y_upgrade/language/hr_HR/plugin.lang.php