diff --git a/config/config.sample.yml b/config/config.sample.yml
index 4e813c1..2f82d71 100644
--- a/config/config.sample.yml
+++ b/config/config.sample.yml
@@ -17,6 +17,7 @@ rpc:
   port: 22555
   user: dogecoinrpc
   pass: pass
+  prefix: ''
 coin:
   withdrawal_fee: 1
   min_withdraw: 5