diff --git a/web/app.js b/web/app.js
index 253a6d78f..3bb2eb6e1 100644
--- a/web/app.js
+++ b/web/app.js
@@ -689,16 +689,6 @@ const PDFViewerApplication = {
       appConfig.toolbar?.viewFind?.classList.add("hidden");
     }
 
-    appConfig.mainContainer.addEventListener(
-      "transitionend",
-      function (evt) {
-        if (evt.target === /* mainContainer */ this) {
-          eventBus.dispatch("resize", { source: this });
-        }
-      },
-      true
-    );
-
     if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
       if (file) {
         this.open({ url: file });
diff --git a/web/pdf_sidebar.js b/web/pdf_sidebar.js
index 394c4e322..50e319de7 100644
--- a/web/pdf_sidebar.js
+++ b/web/pdf_sidebar.js
@@ -329,6 +329,8 @@ class PDFSidebar {
     this.sidebarContainer.addEventListener("transitionend", evt => {
       if (evt.target === this.sidebarContainer) {
         this.outerContainer.classList.remove("sidebarMoving");
+        // Ensure that rendering is triggered after opening/closing the sidebar.
+        this.eventBus.dispatch("resize", { source: this });
       }
     });