diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index ae6504d07fd6..918c2ba071b5 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -24,9 +24,7 @@
 #include <ctype.h>
 #include <limits.h>
 
-#ifndef ARRAY_SIZE
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
-#endif
 
 #define KSYM_NAME_LEN		128