diff --git a/layouts/partials/shell.html b/layouts/partials/shell.html
index 7a0db791da..c771850d1c 100644
--- a/layouts/partials/shell.html
+++ b/layouts/partials/shell.html
@@ -17,7 +17,7 @@
             <!-- Interactive Shell -->
             <iframe
                 class="numpy-shell"
-                src="https://jupyterlite.github.io/demo/repl/?toolbar=1&kernel=python&execute=0&code=import%20numpy%20as%20np"
+                src="https://jupyterlite.github.io/demo/repl/?toolbar=1&kernel=python&promptCellPosition=left&execute=0&code=import%20numpy%20as%20np"
             >
             </iframe>
         </div>