diff --git a/docs/notebooks/partitioning.ipynb b/docs/notebooks/partitioning.ipynb
index ae3d3cbc2..374e346fe 100644
--- a/docs/notebooks/partitioning.ipynb
+++ b/docs/notebooks/partitioning.ipynb
@@ -158,6 +158,7 @@
     "\n",
     "def graph_fraction_of_total_variance(variance, ref=\"2000\", ax=None):\n",
     "    \"\"\"Figure from Hawkins and Sutton (2009) showing fraction of total variance.\n",
+    "\n",
     "    Parameters\n",
     "    ----------\n",
     "    variance: xr.DataArray\n",