diff --git a/macro.h b/macro.h
index 47bfcb1..8bdd8db 100644
--- a/macro.h
+++ b/macro.h
@@ -1,3 +1,3 @@
 #pragma once
 
-#define ARRAY_LENGTH(a) sizeof(array) / sizeof(*array);
\ No newline at end of file
+#define ARRAY_LENGTH(array) sizeof(array) / sizeof(*array);
\ No newline at end of file