diff --git a/docs/widget.ipynb b/docs/widget.ipynb
index 0c49806..2c9136f 100644
--- a/docs/widget.ipynb
+++ b/docs/widget.ipynb
@@ -570,6 +570,7 @@
    "outputs": [],
    "source": [
     "%matplotlib widget\n",
+    "\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
     "fig, ax = plt.subplots(figsize=(7, 4))\n",