diff --git a/lib/plugins.js b/lib/plugins.js
index 7f9a589b..c3012ca9 100644
--- a/lib/plugins.js
+++ b/lib/plugins.js
@@ -1,7 +1,5 @@
 'use strict';
 
-var fs = require('fs');
-
 var _ = require('lodash');
 var async   = require('async');
 var logger  = require('./logger');
@@ -14,7 +12,6 @@ var PENDING_TIMEOUT = 70 * 1000;
 // TODO: might have to update this if user is allowed to extend monitoring time
 var DEPOSIT_TIMEOUT = 130 * 1000;
 
-
 var db = null;
 
 var tickerPlugin = null;
@@ -38,13 +35,6 @@ var reapTxInterval = null;
 
 var tradesQueue = [];
 
-var cartridges = null;
-try {
-  cartridges = JSON.parse(fs.readFileSync('./cartridges.json'));
-} catch (ex) {
-  logger.warn('No cartridges.json file found: ' + ex.message);
-}
-
 // that's basically a constructor
 exports.init = function init(databaseHandle) {
   if (!databaseHandle) {
@@ -198,19 +188,21 @@ exports.logEvent = function event(session, rawEvent) {
 };
 
 function buildCartridges(counts) {
+  var cartridges = cachedConfig.exchanges.settings.cartridges;
+  var virtualCartridges = cachedConfig.exchanges.settings.virtualCartridges;
   if (!cartridges) return null;
   return {
     cartridges: [
       {
-        denomination: cartridges.cartridges[0],
+        denomination: cartridges[0],
         count: counts[0]
       },
       {
-        denomination: cartridges.cartridges[1],
+        denomination: cartridges[1],
         count: counts[1]
       },
     ],
-    virtualCartridges: cartridges.virtualCartridges
+    virtualCartridges: virtualCartridges
   };
 }