diff --git a/doc/usage.rst b/doc/usage.rst
index 7f7c299..6073f0c 100644
--- a/doc/usage.rst
+++ b/doc/usage.rst
@@ -2,6 +2,7 @@ Usage
 =====
 
 .. contents::
+.. highlight:: console
 
 How to use f3write and f3read
 -----------------------------