diff --git a/src/newcoin.proto b/src/newcoin.proto
index 17d7bde493..c813d3457c 100644
--- a/src/newcoin.proto
+++ b/src/newcoin.proto
@@ -23,6 +23,7 @@ enum MessageType {
 	mtCLOSE_LEDGER=			35;
 	mtSTATUS_CHANGE=		36;
 	mtPEER_POSITION=		37;
+	mtHAVE_SET=				38;
 
 // data replication and synchronization
 	mtGET_VALIDATIONS=		40;