diff --git a/protob/types.proto b/protob/types.proto
index 6b9ac3691..96928b8e1 100644
--- a/protob/types.proto
+++ b/protob/types.proto
@@ -126,8 +126,9 @@ message HDNodePathType {
 message CoinType {
 	optional string coin_name = 1;
 	optional string coin_shortcut = 2;
-	optional uint32 address_type = 3;
+	optional uint32 address_type = 3 [default=0];
 	optional uint64 maxfee_kb = 4;
+	optional uint32 address_type_p2sh = 5 [default=5];
 }
 
 /**