diff --git a/lib/ansible/modules/user.py b/lib/ansible/modules/user.py
index dab72df7337..a44cfbe0140 100644
--- a/lib/ansible/modules/user.py
+++ b/lib/ansible/modules/user.py
@@ -52,7 +52,7 @@ options:
         type: str
     groups:
         description:
-            - List of groups user will be added to.
+            - A list of supplementary groups which the user is also a member of.
             - By default, the user is removed from all other groups. Configure C(append) to modify this.
             - When set to an empty string C(''),
               the user is removed from all groups except the primary group.