diff --git a/developer/name-server-protocol.md b/developer/name-server-protocol.md
index 7622fc1b4797e216ea6800d86c5244671a6ff358..b6272abdbd36ca37f55e745e33810a72192db054 100644
--- a/developer/name-server-protocol.md
+++ b/developer/name-server-protocol.md
@@ -23,7 +23,7 @@ Usernames are checked by a regex to ensure some rules about their
 format:
 
 -   Length must be between 3 and 32 characters
--   Those characters must be alphanumerical with underscore `_` being
+-   Those characters must be alphanumerical with dashes `-` being
     also accepted.
 
 Querying a name