diff --git a/jupyterbook/content/code_gallery/data_analysis_and_visualization_notebooks/2016-11-16-CF-UGRID-SGRID-conventions.ipynb b/jupyterbook/content/code_gallery/data_analysis_and_visualization_notebooks/2016-11-16-CF-UGRID-SGRID-conventions.ipynb
index fd75c131..3ece688b 100644
--- a/jupyterbook/content/code_gallery/data_analysis_and_visualization_notebooks/2016-11-16-CF-UGRID-SGRID-conventions.ipynb
+++ b/jupyterbook/content/code_gallery/data_analysis_and_visualization_notebooks/2016-11-16-CF-UGRID-SGRID-conventions.ipynb
@@ -857,7 +857,9 @@
     "import pysgrid\n",
     "\n",
     "url = \"https://geoport.whoi.edu/thredds/dodsC/coawst_4/use/fmrc/coawst_4_use_best.ncd\"\n",
-    "url = \"http://tds.marine.rutgers.edu/thredds/dodsC/roms/doppio/2017_da/avg/Averages_Best\"\n",
+    "url = (\n",
+    "    \"http://tds.marine.rutgers.edu/thredds/dodsC/roms/doppio/2017_da/avg/Averages_Best\"\n",
+    ")\n",
     "sgrid = pysgrid.load_grid(url)"
    ]
   },