diff --git a/RSDayFlow/RSDFDatePickerView.m b/RSDayFlow/RSDFDatePickerView.m
index c870123..6542591 100755
--- a/RSDayFlow/RSDFDatePickerView.m
+++ b/RSDayFlow/RSDFDatePickerView.m
@@ -96,9 +96,9 @@ - (instancetype)initWithFrame:(CGRect)frame calendar:(NSCalendar *)calendar star
 {
     self = [super initWithFrame:frame];
     if (self) {
+        _calendar = calendar;
         _startDate = startDate ? [self dateWithoutTimeComponents:startDate] : nil;
         _endDate = endDate ? [self dateWithoutTimeComponents:endDate] : nil;
-        _calendar = calendar;
         [self commonInitializer];
     }
     return self;