diff --git a/client.go b/client.go
index c427256..7e37d43 100644
--- a/client.go
+++ b/client.go
@@ -794,7 +794,7 @@ func handleClientMessage(c *client, m clientMessage) error {
 			cc.write(m)
 		}
 	case "op", "unop", "present", "unpresent":
-		if !c.permissions.Admin {
+		if !c.permissions.Op {
 			c.error(userError("not authorised"))
 			return nil
 		}
@@ -803,7 +803,7 @@ func handleClientMessage(c *client, m clientMessage) error {
 			return c.error(err)
 		}
 	case "kick":
-		if !c.permissions.Admin {
+		if !c.permissions.Op {
 			c.error(userError("not authorised"))
 			return nil
 		}
diff --git a/group.go b/group.go
index 39a7d6f..868caf4 100644
--- a/group.go
+++ b/group.go
@@ -196,7 +196,7 @@ func addClient(name string, client *client, user, pass string) (*group, []userid
 	var users []userid
 	g.mu.Lock()
 	defer g.mu.Unlock()
-	if !perms.Admin && g.description.MaxClients > 0 {
+	if !perms.Op && g.description.MaxClients > 0 {
 		if len(g.clients) >= g.description.MaxClients {
 			return nil, nil, userError("too many users")
 		}
@@ -322,7 +322,7 @@ type groupDescription struct {
 	Public         bool        `json:"public,omitempty"`
 	MaxClients     int         `json:"max-clients,omitempty"`
 	AllowAnonymous bool        `json:"allow-anonymous,omitempty"`
-	Admin          []groupUser `json:"admin,omitempty"`
+	Op             []groupUser `json:"op,omitempty"`
 	Presenter      []groupUser `json:"presenter,omitempty"`
 	Other          []groupUser `json:"other,omitempty"`
 }
@@ -370,7 +370,7 @@ func getDescription(name string) (*groupDescription, error) {
 }
 
 type userPermission struct {
-	Admin   bool `json:"admin,omitempty"`
+	Op      bool `json:"op,omitempty"`
 	Present bool `json:"present,omitempty"`
 }
 
@@ -379,9 +379,9 @@ func getPermission(desc *groupDescription, user, pass string) (userPermission, e
 	if !desc.AllowAnonymous && user == "" {
 		return p, userError("anonymous users not allowed in this group, please choose a username")
 	}
-	if found, good := matchUser(user, pass, desc.Admin); found {
+	if found, good := matchUser(user, pass, desc.Op); found {
 		if good {
-			p.Admin = true
+			p.Op = true
 			p.Present = true
 			return p, nil
 		}
@@ -414,9 +414,9 @@ func setPermission(g *group, id string, perm string) error {
 
 	switch perm {
 	case "op":
-		c.permissions.Admin = true
+		c.permissions.Op = true
 	case "unop":
-		c.permissions.Admin = false
+		c.permissions.Op = false
 	case "present":
 		c.permissions.Present = true
 	case "unpresent":
diff --git a/static/sfu.html b/static/sfu.html
index 0ab0b1e..af2a72e 100644
--- a/static/sfu.html
+++ b/static/sfu.html
@@ -13,6 +13,7 @@
     <div id="header">
       <div id="statdiv">
         <span id="statspan"></span>
+        <span id="userspan"></span>
         <form id="userform" class="userform">
           <label for="username">Username:</label>
           <input id="username" type="text" name="username"
diff --git a/static/sfu.js b/static/sfu.js
index b4064db..0cbdaaf 100644
--- a/static/sfu.js
+++ b/static/sfu.js
@@ -83,6 +83,7 @@ function setConnected(connected) {
         userform.classList.add('userform-invisible');
         userform.classList.remove('userform');
         disconnectbutton.classList.remove('disconnect-invisible');
+        displayUsername();
     } else {
         let userpass = getUserPass();
         document.getElementById('username').value =
@@ -96,6 +97,7 @@ function setConnected(connected) {
         userform.classList.remove('userform-invisible');
         disconnectbutton.classList.add('disconnect-invisible');
         permissions={};
+        clearUsername(false);
     }
 }
 
@@ -518,10 +520,29 @@ function gotUser(id, name, del) {
         addUser(id, name);
 }
 
+function displayUsername() {
+    let userpass = getUserPass();
+    let text = '';
+    if(userpass && userpass.username)
+        text = 'as ' + userpass.username;
+    if(permissions.op && permissions.present)
+        text = text + ' (op, presenter)';
+    else if(permissions.op)
+        text = text + ' (op)';
+    else if(permissions.present)
+        text = text + ' (presenter)';
+    document.getElementById('userspan').textContent = text;
+}
+
+function clearUsername() {
+    document.getElementById('userspan').textContent = '';
+}
+
 function gotPermissions(perm) {
     permissions = perm;
     document.getElementById('presenterbox').disabled = !perm.present;
     document.getElementById('sharebox').disabled = !perm.present;
+    displayUsername();
 }
 
 const urlRegexp = /https?:\/\/[-a-zA-Z0-9@:%/._\+~#=?]+[-a-zA-Z0-9@:%/_\+~#=]/g;
@@ -647,8 +668,8 @@ function handleInput() {
             case '/kick':
             case '/present':
             case '/unpresent':
-                if(!permissions.admin) {
-                    displayError("You're not an administrator");
+                if(!permissions.op) {
+                    displayError("You're not an operator");
                     return;
                 }
                 let id;