diff --git a/docs/ref/models/querysets.txt b/docs/ref/models/querysets.txt
index bd20fbdcea..017cdcae29 100644
--- a/docs/ref/models/querysets.txt
+++ b/docs/ref/models/querysets.txt
@@ -2508,7 +2508,7 @@ SQL equivalent::
 ``in``
 ~~~~~~
 
-In a given list.
+In a given iterable; often a list, tuple, or queryset.
 
 Example::