diff --git a/core/server/apps/amp/lib/router.js b/core/server/apps/amp/lib/router.js
index 00ac0f60ef..6351a58bec 100644
--- a/core/server/apps/amp/lib/router.js
+++ b/core/server/apps/amp/lib/router.js
@@ -33,7 +33,7 @@ function _renderer(req, res, next) {
 function getPostData(req, res, next) {
     req.body = req.body || {};
 
-    const urlWithoutSubdirectoryWithoutAmp = res.locals.relativeUrl.match(/(.*?\/)amp/)[1];
+    const urlWithoutSubdirectoryWithoutAmp = res.locals.relativeUrl.match(/(.*?\/)amp\/?$/)[1];
 
     /**
      * @NOTE