diff --git a/modules/ad_banner/_ad_banner_widget2_video.html.erb b/modules/ad_banner/_ad_banner_widget2_video.html.erb
index 35f4c20..471623f 100644
--- a/modules/ad_banner/_ad_banner_widget2_video.html.erb
+++ b/modules/ad_banner/_ad_banner_widget2_video.html.erb
@@ -104,7 +104,7 @@ if (typeof onYouTubeIframeAPIReady !== 'function'){
     window.yt_players = {};
   function find_out_yt_event_list_key(yt_player){
     var defalt_key = 'o';
-    var all_keys = Object.keys(ytp).filter(function(s){return s.length == 1});
+    var all_keys = Object.keys(yt_player).filter(function(s){return s.length == 1});
     var prop_nums_thresh = 6;
     if(all_keys.indexOf(defalt_key) != -1){
       if((yt_player[defalt_key] instanceof Object) && Object.keys(yt_player[defalt_key]).length > prop_nums_thresh){
@@ -122,7 +122,7 @@ if (typeof onYouTubeIframeAPIReady !== 'function'){
   }
   function find_out_yt_event_list_count_key(yt_player, event_list_key){
     var defalt_key = 'v';
-    var all_keys = Object.keys(ytp).filter(function(s){return s.length == 1});
+    var all_keys = Object.keys(yt_player).filter(function(s){return s.length == 1});
     var equal_count = yt_player[event_list_key].length;
     if(all_keys.indexOf(defalt_key) != -1){
       if(yt_player[defalt_key] == equal_count){