diff --git a/README.md b/README.md
index 9136f42..d6eeaa9 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ python relbench_link_prediction_benchmark.py --model contextgnn
 
 To reproduce results on IJCAI-Contest, run `benchmark/tgt_ijcai_benchmark.py`.
 
-```
+```sh
 python tgt_ijcai_benchmark.py --model contextgnn
 ```