diff --git a/lib/ansible/plugins/filter/union.yml b/lib/ansible/plugins/filter/union.yml
index 7ef656de00b..d5e5c7ae31d 100644
--- a/lib/ansible/plugins/filter/union.yml
+++ b/lib/ansible/plugins/filter/union.yml
@@ -29,7 +29,7 @@ EXAMPLES: |
   # list1: [1, 2, 5, 1, 3, 4, 10]
   # list2: [1, 2, 3, 4, 5, 11, 99]
   {{ list1 | union(list2) }}
-  # => [1, 2, 5, 1, 3, 4, 10, 11, 99]
+  # => [1, 2, 5, 3, 4, 10, 11, 99]
 RETURN:
   _value:
     description: A unique list of all the elements from both lists.