diff --git a/calendar/inc/hook_calendar_add_def_pref.inc.php b/calendar/inc/hook_add_def_pref.inc.php
similarity index 100%
rename from calendar/inc/hook_calendar_add_def_pref.inc.php
rename to calendar/inc/hook_add_def_pref.inc.php
diff --git a/calendar/inc/hook_calendar_email.inc.php b/calendar/inc/hook_email.inc.php
similarity index 100%
rename from calendar/inc/hook_calendar_email.inc.php
rename to calendar/inc/hook_email.inc.php