diff --git a/library/src/main/java/solar/blaz/date/week/WeekDatePicker.java b/library/src/main/java/solar/blaz/date/week/WeekDatePicker.java
index 898587e..2078419 100644
--- a/library/src/main/java/solar/blaz/date/week/WeekDatePicker.java
+++ b/library/src/main/java/solar/blaz/date/week/WeekDatePicker.java
@@ -817,7 +817,7 @@ public void setDateIndicator(@NonNull LocalDate date, boolean enabled) {
     }
 
     private int getDayForDate(@NonNull LocalDate date) {
-        return firstDay.until(date).getDays();
+        return (int) firstDay.until(date,ChronoUnit.DAYS);
     }
 
     @Override