diff --git a/index.js b/index.js
index 8876c64bbaca5f0df883fe7de982da8776a50def..7637d09273a8bab096bb224e44e6852dccf1aa91 100644
--- a/index.js
+++ b/index.js
@@ -207,6 +207,8 @@ function startServer() {
         }
         try {
             req.body.owner = formatAddress(req.body.owner);
+            if (!req.body.owner)
+                throw "no owner";
         } catch (err) {
             console.log("Error parsing input: " + err);
             http_res.status(400).end(JSON.stringify({"success": false, "error": err}));