diff --git a/src/config.ml b/src/config.ml
index 926c73ae..82fa9514 100644
--- a/src/config.ml
+++ b/src/config.ml
@@ -57,6 +57,14 @@ module Secmod_eddsa = struct
   let key_dir = Fpath.(v "eddsa")
 end
 
+module Exchangedb = struct
+  let idle_reserve_expiration_time = dummy_duration
+  let legal_reserve_expiration_time = dummy_duration
+  let aggregator_shift = dummy_duration
+  let default_purse_limit = 9999
+  let max_aml_program_runtime = dummy_duration
+end
+
 module Exchangedb_postgres = struct
   (* pgx://<user>:<password>@<host-or-directory>:<port>/<database> *)
   let config =