diff --git a/modes.md b/modes.md
index 2352450..1fca763 100644
--- a/modes.md
+++ b/modes.md
@@ -5,7 +5,7 @@ Implement modes, default mode is `NORMAL`
 
 In the example below, you declare a mode: `BROWSER`, which is activated when you press <kbd>modkey</kbd> + <kbd>b</kbd>. Then, you can press <kbd>f</kbd> to launch `Firefox` and return to the default `NORMAL` mode.
 
-```
+```c
 enum {
   BROWSER,
 };