diff --git a/util/nvramtool/lbtable.c b/util/nvramtool/lbtable.c
index 1c7bc0a..5db61c5 100644
--- a/util/nvramtool/lbtable.c
+++ b/util/nvramtool/lbtable.c
@@ -489,6 +489,9 @@
 		}
 
 		map_pages(p, table->table_bytes + sizeof(*table));
+
+		table = (const struct lb_header *)phystov(p);
+
 		/* validate table checksum */
 		if (table->table_checksum !=
 		    compute_ip_checksum(((char *)table) + sizeof(*table),