diff --git a/search_in_youtube_video_comments.py b/search_in_youtube_video_comments.py
index cb7db2b..fc8c540 100755
--- a/search_in_youtube_video_comments.py
+++ b/search_in_youtube_video_comments.py
@@ -44,6 +44,7 @@ while True:
                     break
                 commentsNextPageToken = commentsData['nextPageToken']
         else:
+            # This condition is to manage properly `item`s without `replies` entry.
             if totalReplyCount > 0:
                 for comment in item['replies']['comments']:
                     treatComment(comment)