diff --git a/loopy/kernel/tools.py b/loopy/kernel/tools.py
index 1f7feb1fa23d487f2d0a2be2338b92409e64bfe7..27c0a2218286b57f4756d2f92f106a82c0694135 100644
--- a/loopy/kernel/tools.py
+++ b/loopy/kernel/tools.py
@@ -106,6 +106,7 @@ def add_and_infer_dtypes(knl, dtype_dict):
     from loopy.preprocess import infer_unknown_types
     return infer_unknown_types(knl, expect_completion=True)
 
+
 def _add_and_infer_dtypes_overdetermined(knl, dtype_dict):
     knl = _add_dtypes_overdetermined(knl, dtype_dict)
 
@@ -843,7 +844,8 @@ def assign_automatic_axes(kernel, axis=0, local_size=None):
 
             # assign longest auto axis inames first
             auto_axis_inames.sort(
-                            key=lambda iname: (kernel.get_constant_iname_length(iname), iname),
+                            key=lambda iname: (
+                                kernel.get_constant_iname_length(iname), iname),
                             reverse=True)
 
             if auto_axis_inames: