diff --git a/danmaku2ass.py b/danmaku2ass.py
index 4d02050..29c51a4 100755
--- a/danmaku2ass.py
+++ b/danmaku2ass.py
@@ -151,9 +151,11 @@ def ReadCommentsNiconico(f, fontsize):
 
 
 def ReadCommentsAcfun(f, fontsize):
-    comment_element = json.load(f)
+    #comment_element = json.load(f)
     # after load acfun comment json file as python list, flatten the list
-    comment_element = [c for sublist in comment_element for c in sublist]
+    #comment_element = [c for sublist in comment_element for c in sublist]
+    comment_elements = json.load(f)
+    comment_element = comment_elements[2]
     for i, comment in enumerate(comment_element):
         try:
             p = str(comment['c']).split(',')