diff --git a/kernel/audit.c b/kernel/audit.c
index de99195..8a82d48 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -750,7 +750,7 @@
 	struct audit_features *uaf;
 	int i;
 
-	BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > sizeof(audit_feature_names)/sizeof(audit_feature_names[0]));
+	BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > ARRAY_SIZE(audit_feature_names));
 	uaf = nlmsg_data(nlmsg_hdr(skb));
 
 	/* if there is ever a version 2 we should handle that here */