diff --git a/content/v2.0/reference/flux/functions/built-in/transformations/window.md b/content/v2.0/reference/flux/functions/built-in/transformations/window.md
index f68d57351..fee6fc0b9 100644
--- a/content/v2.0/reference/flux/functions/built-in/transformations/window.md
+++ b/content/v2.0/reference/flux/functions/built-in/transformations/window.md
@@ -107,6 +107,8 @@ _**Data type:** String_
 Specifies whether empty tables should be created.
 Defaults to `false`.
 
+_**Data type:** Boolean_
+
 ## Examples
 
 #### Window data into 10 minute intervals