diff --git a/python/cudf/cudf/core/column/string.py b/python/cudf/cudf/core/column/string.py
index a79c635e2a9..c1d2b0143ae 100644
--- a/python/cudf/cudf/core/column/string.py
+++ b/python/cudf/cudf/core/column/string.py
@@ -5918,7 +5918,9 @@ def values(self) -> cupy.ndarray:
         """
         Return a CuPy representation of the StringColumn.
         """
-        raise NotImplementedError("String Arrays is not yet implemented in cupy")
+        raise NotImplementedError(
+            "String Arrays is not yet implemented in cupy"
+        )
 
     def to_pandas(
         self,