diff --git a/themes/finc/js/lightbox.js b/themes/finc/js/lightbox.js
index fb9ce55c1f81ab27c07119899e206b55761769ac..febc29b3017d0db0733651dd9b43abed756ab7a3 100644
--- a/themes/finc/js/lightbox.js
+++ b/themes/finc/js/lightbox.js
@@ -291,6 +291,8 @@ VuFind.register('lightbox', function Lightbox() {
       _lightboxTitle = $(this).data('lightbox-title') || false;
       _modalParams = $(this).data();
       VuFind.modal('show');
+      // Copied finc #17984
+      setOrigin($(this));
       ajax(obj);
       _currentUrl = this.href;
       return false;