diff --git a/system/language/english/calendar_lang.php b/system/language/english/calendar_lang.php
index d7b98fa..9d33528 100644
--- a/system/language/english/calendar_lang.php
+++ b/system/language/english/calendar_lang.php
@@ -74,7 +74,7 @@
 $lang['cal_february'] = 'February';
 $lang['cal_march'] = 'March';
 $lang['cal_april'] = 'April';
-$lang['cal_may'] = 'May';
+$lang['cal_mayl'] = 'May';
 $lang['cal_june'] = 'June';
 $lang['cal_july'] = 'July';
 $lang['cal_august'] = 'August';