diff --git a/modules/yieldoneBidAdapter.js b/modules/yieldoneBidAdapter.js
index 97cce3cbd69..1b6c0e7083e 100644
--- a/modules/yieldoneBidAdapter.js
+++ b/modules/yieldoneBidAdapter.js
@@ -22,7 +22,7 @@ export const spec = {
       const params = bidRequest.params;
       const placementId = params.placementId;
       const cb = Math.floor(Math.random() * 99999999999);
-      const referrer = encodeURIComponent(bidderRequest.refererInfo.referer);
+      const referrer = bidderRequest.refererInfo.referer;
       const bidId = bidRequest.bidId;
       const unitCode = bidRequest.adUnitCode;
       const timeout = config.getConfig('bidderTimeout');