diff --git a/src/DateTimePickerDialog.java b/src/DateTimePickerDialog.java
index 9eaac67..78e6bed 100644
--- a/src/DateTimePickerDialog.java
+++ b/src/DateTimePickerDialog.java
@@ -35,7 +35,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
     private OnDateTimeSetListener mOnDateTimeSetListener;
     private DateTimePicker mDateTimePicker;
 
-    public interface onDateTimeSetListener {
+    public interface OnDateTimeSetListener {
         void onDateTimeSet(AlertDialog dialog, long date);
     }