diff --git a/youtube_recall/README.md b/youtube_recall/README.md
index 91aaf6cca7899fc45b7284c4998a4a4377b8e3b7..ee26f0eaf80027ac122d08a67c74d069f355f97c 100644
--- a/youtube_recall/README.md
+++ b/youtube_recall/README.md
@@ -75,7 +75,6 @@ The fucntion of this script is as follows:
 - Filter low-frequency features\[[2](#References)\], which appears less than `feat_appear_limit` times.
 - Encode features, and generate dictionary `feature_dict.pkl`.
 - Count the probability of each video appears and write into `item_freq.pkl`, and provide it to NCE layer.
-```
 
 For example, run the following command to accomplish data pre-processing:
 ```