diff --git a/docs/ref/models/database-functions.txt b/docs/ref/models/database-functions.txt
index 74198ed749c..0d9c80fa256 100644
--- a/docs/ref/models/database-functions.txt
+++ b/docs/ref/models/database-functions.txt
@@ -37,7 +37,7 @@ Usage example::
     >>> from django.db.models import FloatField
     >>> from django.db.models.functions import Cast
     >>> Value.objects.create(integer=4)
-    >>> value = Value.objects.annotate(as_float=Cast('integer', FloatField)).get()
+    >>> value = Value.objects.annotate(as_float=Cast('integer', FloatField())).get()
     >>> print(value.as_float)
     4.0