diff --git a/inc/RRule.php b/inc/RRule.php
index 52088dc8..ebaea25c 100644
--- a/inc/RRule.php
+++ b/inc/RRule.php
@@ -34,7 +34,7 @@ class iCalDate {
   var $_mm;
   var $_dd;
   var $_hh;
-  var $_mm;
+  var $_mi;
   var $_ss;
   var $_tz;