diff --git a/app/index.js b/app/index.js
index 84f52827a..8fde4c144 100644
--- a/app/index.js
+++ b/app/index.js
@@ -84,7 +84,7 @@ async function main() {
     require('@jupyterlab/apputils-extension').default.filter(({ id }) =>
       [
         '@jupyterlab/apputils-extension:palette',
-        '@jupyter/apputils-extension:sanitizer',
+        '@jupyterlab/apputils-extension:sanitizer',
         '@jupyterlab/apputils-extension:settings',
         '@jupyterlab/apputils-extension:state',
         '@jupyterlab/apputils-extension:themes',