diff --git a/docs/topics/db/aggregation.txt b/docs/topics/db/aggregation.txt
index f34648124e..f3618e4303 100644
--- a/docs/topics/db/aggregation.txt
+++ b/docs/topics/db/aggregation.txt
@@ -295,7 +295,7 @@ file::
 
     >>> Author.objects.aggregate(average_rating=Avg('book__rating'))
 
-(The resulting dictionary will have a key called ``'average__rating'``. If no
+(The resulting dictionary will have a key called ``'average_rating'``. If no
 such alias were specified, it would be the rather long ``'book__rating__avg'``.)
 
 Aggregations and other QuerySet clauses