1 files changed, 4 insertions, 1 deletions
diff --git a/client/components/main/editor.js b/client/components/main/editor.js
index 888fbe00..20ece562 100755
--- a/client/components/main/editor.js
+++ b/client/components/main/editor.js
@@ -38,7 +38,10 @@ Blaze.Template.registerHelper('mentions', new Template('mentions', function() {
   const view = this;
   const currentBoard = Boards.findOne(Session.get('currentBoard'));
   const knowedUsers = currentBoard.members.map((member) => {
-    member.username = Users.findOne(member.userId).username;
+    const u = Users.findOne(member.userId);
+    if(u){
+      member.username = u.username;
+    }
     return member;
   });
   const mentionRegex = /\B@([\w.]*)/gi;