diff --git a/auth/v1/msg.proto b/auth/v1/msg.proto
index 5204442..05d773e 100644
--- a/auth/v1/msg.proto
+++ b/auth/v1/msg.proto
@@ -171,6 +171,7 @@ message UserIdentityBasic {
   string mobile = 3;
   string first_name = 4;
   string last_name = 5;
+  string wallet_address = 6;
 }
 
 message UserUpdateIdentityReq {