diff --git a/README.md b/README.md
index 9e4239b2..3a747215 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ daily_st...		827,820 lines /sec
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 rotating_mt...	1,476,013 lines/sec
 daily_mt...		1,477,619 lines/sec
-```
+```c++
 
 ## Usage Example
 ```