diff --git a/lib/addresses.js b/lib/addresses.js
index e83ab68..62c4cdc 100644
--- a/lib/addresses.js
+++ b/lib/addresses.js
@@ -164,10 +164,10 @@ AddressController.prototype.multitxs = function(req, res, next) {
   var self = this;
 
   var options = {
-    from: req.query.from || req.body.from || 0
+    from: parseInt(req.query.from) || parseInt(req.body.from) || 0
   };
 
-  options.to = req.query.to || req.body.to || options.from + 10;
+  options.to = parseInt(req.query.to) || parseInt(req.body.to) || parseInt(options.from) + 10;
 
   self.node.getAddressHistory(req.addrs, options, function(err, result) {
     if(err) {