diff --git a/howto.md b/howto.md
index c0f7145..908289a 100644
--- a/howto.md
+++ b/howto.md
@@ -16,7 +16,7 @@ Do this for each file. In this example `another-example.h`, `third-example.h`.
 
 ```c
 /* example.c file */
-void example(void);
+void example(void)
 {
     /* do something */
 }