diff --git a/lib/boards-api.js b/lib/boards-api.js
index c058aa8..9bf59e0 100644
--- a/lib/boards-api.js
+++ b/lib/boards-api.js
@@ -68,7 +68,7 @@ function BoardsAPI(ipfs){
     var stored = localStorage.getItem('ipfs-boards-user-cache')
     try {
       this.users = JSON.parse(stored)
-      if(this.users === null || this.users === undefined){
+      if(this.users === null || this.users === undefined || !this.users.indexOf || !this.users.push){
         this.users = []
       }
     } catch(e){