diff --git a/_episodes/01-prep.md b/_episodes/01-prep.md
index abfb74a..a933ba9 100644
--- a/_episodes/01-prep.md
+++ b/_episodes/01-prep.md
@@ -75,7 +75,7 @@ CONTAINER ID        IMAGE               COMMAND             CREATED
 
 _NOTE: You can also use `sudo` without a password, but you probably will not need it in this session. For example,_
 
-``` bash
+``` shell
 [training@registry1-private ~]$ sudo /usr/bin/whoami
 root
 ```