diff --git a/src/components/views/dialogs/ChatInviteDialog.js b/src/components/views/dialogs/ChatInviteDialog.js
index 9b1bb1752a..7ed7be1c15 100644
--- a/src/components/views/dialogs/ChatInviteDialog.js
+++ b/src/components/views/dialogs/ChatInviteDialog.js
@@ -211,6 +211,11 @@ module.exports = React.createClass({
         var uid = user.userId.toLowerCase();
         query = query.toLowerCase();
 
+        // dount match any that are already on the invite list
+        if (this._isOnInviteList(uid)) {
+            return false;
+        }
+
         // direct prefix matches
         if (name.indexOf(query) === 0 || uid.indexOf(query) === 0) {
             return true;
@@ -231,6 +236,15 @@ module.exports = React.createClass({
         return false;
     },
 
+    _isOnInviteList: function(uid) {
+        for (let i = 0; i < this.state.inviteList.length; i++) {
+            if (this.state.inviteList[i].userId.toLowerCase() === uid) {
+                return true;
+            }
+        }
+        return false;
+    },
+
     render: function() {
         var TintableSvg = sdk.getComponent("elements.TintableSvg");
         var AddressSelector = sdk.getComponent("elements.AddressSelector");