diff --git a/sys/vm/uma.h b/sys/vm/uma.h
index f4c2de8a5d25..395415da21db 100644
--- a/sys/vm/uma.h
+++ b/sys/vm/uma.h
@@ -242,7 +242,7 @@ uma_zone_t uma_zcache_create(char *name, int size, uma_ctor ctor, uma_dtor dtor,
  * Definitions for uma_zcreate flags
  *
  * These flags share space with UMA_ZFLAGs in uma_int.h.  Be careful not to
- * overlap when adding new features.  0xf0000000 is in use by uma_int.h.
+ * overlap when adding new features.  0xff000000 is in use by uma_int.h.
  */
 #define UMA_ZONE_PAGEABLE	0x0001	/* Return items not fully backed by
 					   physical memory XXX Not yet */