diff --git a/README.md b/README.md
index 11ac8bd..339eb23 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ au préalable installer les paquets suivants:
 
 ## Utilisation
 
-```
+```shell
 logstreamer.py -h
 
   usage: logstreamer.py [-h] --log LOG [--workdir WORKDIR] [--duration DURATION]