1 files changed, 1 insertions, 0 deletions
diff --git a/openxc.proto b/openxc.proto
index bb54c770..37343629 100644
--- a/openxc.proto
+++ b/openxc.proto
@@ -69,6 +69,7 @@ message PayloadFormatCommand {
     enum PayloadFormat {
         JSON = 1;
         PROTOBUF = 2;
+		MESSAGEPACK = 3;
     }
 
     optional PayloadFormat format = 1;