diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h
index 0edd3a6..3bf4402 100644
--- a/include/rdma/ib_user_verbs.h
+++ b/include/rdma/ib_user_verbs.h
@@ -44,7 +44,7 @@
  * Increment this value if any changes that break userspace ABI
  * compatibility are made.
  */
-#define IB_USER_VERBS_ABI_VERSION	4
+#define IB_USER_VERBS_ABI_VERSION	5
 
 enum {
 	IB_USER_VERBS_CMD_GET_CONTEXT,
@@ -350,6 +350,7 @@
 	__u32 max_send_sge;
 	__u32 max_recv_sge;
 	__u32 max_inline_data;
+	__u32 reserved;
 };
 
 /*