diff --git a/protos/openolt.proto b/protos/openolt.proto
index 0cb6192..e13cc83 100644
--- a/protos/openolt.proto
+++ b/protos/openolt.proto
@@ -223,6 +223,7 @@
     fixed32 gemport_id = 6;
     Classifier classifier = 7;
     Action action = 8;
+    fixed32 priority = 9;
 }
 
 message SerialNumber {