diff --git a/docs/contributing.rst b/docs/contributing.rst
index 336d2ac..63c9953 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -136,7 +136,7 @@
     // Bad
     long f(int,char *)
 
-Values set by #define should be assigned the appropriate type. If you see
+Values set by ``#define`` should be assigned the appropriate type. If you see
 this:
 
 .. code-block:: c