diff --git a/token-server/Settings.toml b/token-server/Settings.toml
index 48d793de..c58ff167 100644
--- a/token-server/Settings.toml
+++ b/token-server/Settings.toml
@@ -1,5 +1,6 @@
 processor_url = "http://0.0.0.0:18080"
 api_key = "aaaaa"
 fee = 10000
+unit = "BTC"
 delay = 3600
-connection_string = "postgresql://postgres:postgres@localhost/mercury"
\ No newline at end of file
+connection_string = "postgresql://postgres:postgres@localhost/mercury"