diff --git a/src/DateTimePickerDialog.java b/src/DateTimePickerDialog.java
index fde6666..ede4971 100644
--- a/src/DateTimePickerDialog.java
+++ b/src/DateTimePickerDialog.java
@@ -37,7 +37,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
     private DateTimePicker mDateTimePicker;
 
     public interface OnDateTimeSetListener {
-        void OnDateTimeSet(AlertDialog dialog, long date);
+        void onDateTimeSet(AlertDialog dialog, long date);
     }
 
     public DateTimePickerDialog(Context context, long date) {