diff --git a/include/lmb.h b/include/lmb.h
index a324754..f3397c7 100644
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -21,6 +21,7 @@
 
 struct lmb_region {
 	unsigned long cnt;
+	unsigned long max;
 	struct lmb_property region[MAX_LMB_REGIONS+1];
 };