diff --git a/web/js/pqueue.ui.core.js b/web/js/pqueue.ui.core.js
index a894ebe..2f91715 100644
--- a/web/js/pqueue.ui.core.js
+++ b/web/js/pqueue.ui.core.js
@@ -9,7 +9,7 @@
     const setStatusMessage = (window.PQueue && window.PQueue.setStatusMessage) || window.setStatusMessage;
     const copyText = (window.PQueue && window.PQueue.copyText) || window.copyText;
 
-    const UI = window.PQueue?.UI || {};
+    const UI = window.PQueue?.UI || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
 
     UI.el = function el(tag, attrs = {}, children = []) {
         const el = document.createElement(tag);
diff --git a/web/js/pqueue.ui.gallery.js b/web/js/pqueue.ui.gallery.js
index 090f8f3..d9c1361 100644
--- a/web/js/pqueue.ui.gallery.js
+++ b/web/js/pqueue.ui.gallery.js
@@ -1,7 +1,7 @@
 (function () {
     "use strict";
 
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
 
     UI.ensureGallery = function ensureGallery() {
         if (UI.galleryOverlay) return;
diff --git a/web/js/pqueue.ui.history.js b/web/js/pqueue.ui.history.js
index f19e907..f5ff27b 100644
--- a/web/js/pqueue.ui.history.js
+++ b/web/js/pqueue.ui.history.js
@@ -2,7 +2,7 @@
     "use strict";
 
     const state = (window.PQueue && window.PQueue.state) || {};
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
     const Format = (window.PQueue && window.PQueue.Format) || window.Format;
     const Events = (window.PQueue && window.PQueue.Events) || window.Events;
 
diff --git a/web/js/pqueue.ui.queue.js b/web/js/pqueue.ui.queue.js
index 0f96181..12d0778 100644
--- a/web/js/pqueue.ui.queue.js
+++ b/web/js/pqueue.ui.queue.js
@@ -3,7 +3,7 @@
 
     const state = (window.PQueue && window.PQueue.state) || {};
     const API = (window.PQueue && window.PQueue.API) || window.API;
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
     const Format = (window.PQueue && window.PQueue.Format) || window.Format;
     const setStatusMessage = (window.PQueue && window.PQueue.setStatusMessage) || window.setStatusMessage;
 
diff --git a/web/js/pqueue.ui.render.js b/web/js/pqueue.ui.render.js
index a805343..8a380d2 100644
--- a/web/js/pqueue.ui.render.js
+++ b/web/js/pqueue.ui.render.js
@@ -2,7 +2,7 @@
     "use strict";
 
     const state = (window.PQueue && window.PQueue.state) || {};
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
     const Events = (window.PQueue && window.PQueue.Events) || window.Events;
     const Format = (window.PQueue && window.PQueue.Format) || window.Format;
 
diff --git a/web/js/pqueue.ui.toolbar.js b/web/js/pqueue.ui.toolbar.js
index e483d1d..5c06d06 100644
--- a/web/js/pqueue.ui.toolbar.js
+++ b/web/js/pqueue.ui.toolbar.js
@@ -2,7 +2,7 @@
     "use strict";
 
     const state = (window.PQueue && window.PQueue.state) || {};
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
     const Events = (window.PQueue && window.PQueue.Events) || window.Events;
 
     UI.renderToolbar = function renderToolbar() {
diff --git a/web/js/pqueue.ui.workflow.js b/web/js/pqueue.ui.workflow.js
index 4f41130..8de16bb 100644
--- a/web/js/pqueue.ui.workflow.js
+++ b/web/js/pqueue.ui.workflow.js
@@ -1,7 +1,7 @@
 (function () {
     "use strict";
 
-    const UI = (window.PQueue && window.PQueue.UI) || window.UI;
+    const UI = (window.PQueue && window.PQueue.UI) || (window.PQueue = (window.PQueue || {}), window.PQueue.UI = {}, window.PQueue.UI);
     const copyText = (window.PQueue && window.PQueue.copyText) || window.copyText;
 
     UI.ensureWorkflowModal = function ensureWorkflowModal() {