diff --git a/README.md b/README.md
index 9ba57d6..2d99385 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@
     _calendar.delegate = self;
     
 #### FSCalendarDataSource
-- (NSString *)calendar:(FSCalendar *)calendar subtitleForDay:(NSDate *)date; // set subtitle
+- (NSString *)calendar:(FSCalendar *)calendar subtitleForDate:(NSDate *)date; // set subtitle
 - (BOOL)calendar:(FSCalendar *)calendar hasEventForDate:(NSDate *)date; // set event dot
 
 #### FSCalendarDelegate