diff --git a/README.md b/README.md
index 23e218d..830a8f6 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ Again, depending on your `PATH`, you might have to specify the full path to ruby
 
 On Debian (and probably Debian based distributions like Ubuntu), follow the following steps (as root).
 
-```
+```sh
 apt-get install ruby rubygems libimage-exiftool-perl
 gem install mini_exiftool
 ```