diff --git a/source/js/pjax.js b/source/js/pjax.js
index a9a9dd384..9b7713a62 100644
--- a/source/js/pjax.js
+++ b/source/js/pjax.js
@@ -49,3 +49,5 @@ document.addEventListener('pjax:success', () => {
     NexT.utils.updateSidebarPosition();
   }
 });
+
+if (!window.pjax) window.pjax = pjax;