diff --git a/docs/core/entity/calendar.md b/docs/core/entity/calendar.md
index 5c94f232..d257f775 100644
--- a/docs/core/entity/calendar.md
+++ b/docs/core/entity/calendar.md
@@ -51,7 +51,7 @@ A `CalendarEvent` represents individual event on a calendar.
 
 | Name        | Type             | Default      | Description                                                          |
 | ----------- | ---------------- | ------------ | -------------------------------------------------------------------- |
-| start       | datetime or date | **Required** | The start (inclusive) of the event.  Must be before `end`. Both `start` and `end` must be the same time.                                             |
+| start       | datetime or date | **Required** | The start (inclusive) of the event.  Must be before `end`. Both `start` and `end` must be the same type.                                             |
 | end         | datetime or date | **Required** | The end (exclusive) of the event. Must be after `start`.                                               |
 | summary     | string           | **Required** | A title o summary of the event.                                      |
 | location    | string           | `None`       | A geographic location of the event.                                  |