diff --git a/model/ddl.go b/model/ddl.go
index 374685a4f..98f9bef08 100644
--- a/model/ddl.go
+++ b/model/ddl.go
@@ -84,6 +84,7 @@ const (
 	ActionCreatePlacementPolicy         ActionType = 51
 	ActionAlterPlacementPolicy          ActionType = 52
 	ActionDropPlacementPolicy           ActionType = 53
+	ActionAlterTablePartitionPolicy     ActionType = 54
 )
 
 var actionMap = map[ActionType]string{