diff --git a/pages/linux/adduser.md b/pages/linux/adduser.md
index fa5d9db691..c495e0cd9b 100644
--- a/pages/linux/adduser.md
+++ b/pages/linux/adduser.md
@@ -21,3 +21,7 @@
 - Create a new user belonging to the specified group:
 
 `adduser --ingroup {{group}} {{username}}`
+
+- Add an existing user to the specified group:
+
+`adduser {{username}} {{group}}`