diff --git a/proto/config/appconfig.proto b/proto/config/appconfig.proto
index b2a858e7..661264c5 100644
--- a/proto/config/appconfig.proto
+++ b/proto/config/appconfig.proto
@@ -206,6 +206,10 @@ message AppInstanceConfig {
 
   // PatchEnvelopeRef is used to track all patch envelopes used by the app instance
   PatchEnvelopeRef patchRef = 23;
+
+  // allow to be discovered by other app instances in the same network
+  // instance. Default is false
+  bool allow_to_discover = 24;
 }
 
 message PatchEnvelopeRef {