diff --git a/lib/routes.js b/lib/routes.js
index 851059dd..c2f1958f 100644
--- a/lib/routes.js
+++ b/lib/routes.js
@@ -21,6 +21,8 @@ function poll(req, res) {
   var rateRec = plugins.getDeviceRate();
   var balanceRec = plugins.getBalance();
 
+  logger.debug('poll request from: %s', getFingerprint(req));
+
   // `rateRec` and `balanceRec` are both objects, so there's no danger
   // of misinterpreting rate or balance === 0 as 'Server initializing'.
   if (!rateRec || !balanceRec) {