diff --git a/src/interface/address.thrift b/src/interface/address.thrift
index c58bea917..2b489786e 100644
--- a/src/interface/address.thrift
+++ b/src/interface/address.thrift
@@ -1,5 +1,5 @@
 struct Address{
-    1: binary unique_id;
-    2: binary last_known_ip;
+    1: string unique_id;
+    2: string last_known_ip;
     3: i32 last_known_port;
 }