diff --git a/python/cugraph/cugraph/structure/hypergraph.py b/python/cugraph/cugraph/structure/hypergraph.py
index eb6b9f7f655..add68cb6dac 100644
--- a/python/cugraph/cugraph/structure/hypergraph.py
+++ b/python/cugraph/cugraph/structure/hypergraph.py
@@ -596,6 +596,4 @@ def _prepend_str(col, val):
 
 # Make an empty categorical string dtype
 def _empty_cat_dt():
-    return cudf.CategoricalDtype(
-        categories=np.array([], dtype="str"), ordered=False
-    )
+    return cudf.CategoricalDtype(categories=np.array([], dtype="str"), ordered=False)