diff --git a/openflow_input/oxm-1.3 b/openflow_input/oxm-1.3
index 2dbab42..022f416 100644
--- a/openflow_input/oxm-1.3
+++ b/openflow_input/oxm-1.3
@@ -29,6 +29,7 @@
 // governing permissions and limitations under the EPL.
 
 #version 4
+#version 5
 
 struct of_oxm_tunnel_id : of_oxm {
     uint32_t type_len == 0x80004c08;