diff --git a/specification/intro.rst b/specification/intro.rst
index ed046ace5..45916fd73 100644
--- a/specification/intro.rst
+++ b/specification/intro.rst
@@ -150,8 +150,8 @@ Users
 ~~~~~
 
 Each client is associated with a user account, which is identified in Matrix
-using a unique identifier, or "user ID". This ID is namespaced to the homeserver
-which allocated the account and has the form::
+using a unique "user ID". This ID is namespaced to the homeserver which
+allocated the account and has the form::
 
   @localpart:domain