diff --git a/python/pyarrow/tests/test_substrait.py b/python/pyarrow/tests/test_substrait.py
index 8579eb1ab2fc3..40700e4741321 100644
--- a/python/pyarrow/tests/test_substrait.py
+++ b/python/pyarrow/tests/test_substrait.py
@@ -990,7 +990,7 @@ def check_one_way(field):
 
     for field in schema:
         check_one_way(field)
-        
+
 
 def test_invalid_expression_ser_des():
     schema = pa.schema([