diff --git a/config/index.js b/config/index.js
index 671cf22..7ef72dc 100644
--- a/config/index.js
+++ b/config/index.js
@@ -10,7 +10,7 @@ const config = {
   mongo: {
     accounts: {
       uri: process.env.MONGO_ACCOUNTS_URI || process.env.MONGO_URI || 'mongodb://localhost:27017/data',
-      collectionPrefix: process.env.MONGO_COLLECTION_PREFIX || 'eth'
+      collectionPrefix: process.env.MONGO_ACCOUNTS_COLLECTION_PREFIX || process.env.MONGO_COLLECTION_PREFIX || 'eth'
     },
     data: {
       uri: process.env.MONGO_DATA_URI || process.env.MONGO_URI || 'mongodb://localhost:27017/data',