diff --git a/docs/source/examples/Notebook/JavaScript Notebook Extensions.ipynb b/docs/source/examples/Notebook/JavaScript Notebook Extensions.ipynb
index 4fef7a91a..e43d76713 100644
--- a/docs/source/examples/Notebook/JavaScript Notebook Extensions.ipynb	
+++ b/docs/source/examples/Notebook/JavaScript Notebook Extensions.ipynb	
@@ -222,7 +222,7 @@
    "source": [
     "Create a dropdown element in the toolbar (DOM `Jupyter.toolbar.element`), you will need \n",
     "\n",
-    "- `Jupyter.notebook.set_autosave_interval(miliseconds)`\n",
+    "- `Jupyter.notebook.set_autosave_interval(milliseconds)`\n",
     "- know that 1 min = 60 sec, and 1 sec = 1000 ms"
    ]
   },