diff --git a/status/types.proto b/status/types.proto
index f8b6f8d..0c302e5 100644
--- a/status/types.proto
+++ b/status/types.proto
@@ -18,3 +18,7 @@ message Status {
 
     repeated Detail details = 3;
 }
+
+enum Success {
+    OK = 0;
+}