diff --git a/lib/storage.js b/lib/storage.js
index cc0bcaf..94fe4a2 100644
--- a/lib/storage.js
+++ b/lib/storage.js
@@ -40,6 +40,9 @@ Storage.prototype._createIndexes = function() {
   this.db.collection(collections.COPAYERS_LOOKUP).createIndex({
     copayerId: 1
   });
+  this.db.collection(collections.COPAYERS_LOOKUP).createIndex({
+     walletId: 1
+  });
   this.db.collection(collections.TXS).createIndex({
     walletId: 1,
     id: 1,
@@ -53,6 +56,9 @@ Storage.prototype._createIndexes = function() {
     walletId: 1,
     createdOn: -1,
   });
+  this.db.collection(collections.TXS).createIndex({
+    txid: 1
+  });
   this.db.collection(collections.NOTIFICATIONS).createIndex({
     walletId: 1,
     id: 1,
@@ -79,6 +85,14 @@ Storage.prototype._createIndexes = function() {
     walletId: 1,
     txid: 1,
   });
+  this.db.collection(collections.PREFERENCES).createIndex({
+    walletId: 1
+  });
+  this.db.collection(collections.FIAT_RATES).createIndex({
+    provider: 1,
+    code: 1,
+    ts: 1
+  });
   this.db.collection(collections.PUSH_NOTIFICATION_SUBS).createIndex({
     copayerId: 1,
   });