diff --git a/packages/notebook-extension/src/index.ts b/packages/notebook-extension/src/index.ts
index e4d217c5778..45d34d1f4b7 100644
--- a/packages/notebook-extension/src/index.ts
+++ b/packages/notebook-extension/src/index.ts
@@ -411,9 +411,10 @@ const tabIcon: JupyterFrontEndPlugin<void> = {
   requires: [INotebookTracker],
   activate: (app: JupyterFrontEnd, tracker: INotebookTracker) => {
     // the favicons are provided by Jupyter Server
-    const notebookIcon = ' /static/favicons/favicon-notebook.ico';
-    const busyIcon = ' /static/favicons/favicon-busy-1.ico';
-
+    const baseURL = window.location.origin;
+    const notebookIcon = `${baseURL}/static/favicons/favicon-notebook.ico`;
+    const busyIcon = `${baseURL}/static/favicons/favicon-busy-1.ico`;
+    
     const updateBrowserFavicon = (
       status: ISessionContext.KernelDisplayStatus
     ) => {