Add paging
diff --git a/src/kint.h b/src/kint.h
index 0184443..abe7660 100644
--- a/src/kint.h
+++ b/src/kint.h
@@ -5,7 +5,7 @@
 typedef unsigned int uint;
 typedef unsigned long ulong;
 
-typedef unsigned long long size_t;
+typedef unsigned long size_t;
 
 typedef uchar bool;
 
@@ -14,3 +14,5 @@
 	false = 0,
 	true,
 };
+
+#define NULL ((void *)0)