diff --git a/lib/weixin_authorize/config.rb b/lib/weixin_authorize/config.rb
index 30b5ddb..ffda3da 100644
--- a/lib/weixin_authorize/config.rb
+++ b/lib/weixin_authorize/config.rb
@@ -14,7 +14,7 @@ def weixin_redis
     end
 
     def key_expired
-      config.key_expired || 100
+      config.try{ |conf| conf.key_expired } || 100
     end
 
     # 可选配置: RestClient timeout, etc.
diff --git a/lib/weixin_authorize/js_ticket/store.rb b/lib/weixin_authorize/js_ticket/store.rb
index 2f6218e..0832f5e 100644
--- a/lib/weixin_authorize/js_ticket/store.rb
+++ b/lib/weixin_authorize/js_ticket/store.rb
@@ -30,7 +30,7 @@ def jsticket
       end
 
       def set_jsticket
-        result = client.http_get("/ticket/getticket", {type: 1}).result
+        result = client.http_get("/ticket/getticket", {type: 'jsapi'}).result
         client.jsticket = result["ticket"]
         client.jsticket_expired_at = WeixinAuthorize.calculate_expire(result["expires_in"])
       end