--- a/util/prosodyctl.lua	Fri Nov 01 22:08:38 2019 +0100
+++ b/util/prosodyctl.lua	Fri Nov 01 22:53:14 2019 +0100
@@ -134,7 +134,7 @@
 
 -- Server control
 local function adduser(params)
-	local user, host, password = nodeprep(params.user), nameprep(params.host), params.password;
+	local user, host, password = nodeprep(params.user, true), nameprep(params.host), params.password;
 	if not user then
 		return false, "invalid-username";
 	elseif not host then