diff --git a/README.adoc b/README.adoc
index 033703cb40..0e16766938 100644
--- a/README.adoc
+++ b/README.adoc
@@ -11,7 +11,7 @@ principles for KiCad.
 - Gettext
 
 == How to install
-```
+```sh
 $ cd kicad-i18n
 $ BUILD_SRC=$(pwd)
 $ mkdir -p ~/tmp/kicad-i18n-build