diff --git a/bitsandbytes/backends/cpu.py b/bitsandbytes/backends/cpu.py
index 97e6580ed..d6a9192e4 100644
--- a/bitsandbytes/backends/cpu.py
+++ b/bitsandbytes/backends/cpu.py
@@ -5,7 +5,6 @@
 from bitsandbytes.utils import QuantState
 
 from .base import Backend
-
 from .cpu_xpu_common import (
     double_quant_impl,
     igemmlt_impl,
diff --git a/bitsandbytes/backends/cpu_xpu_common.py b/bitsandbytes/backends/cpu_xpu_common.py
index 5a0f0f9d5..ceac893b4 100644
--- a/bitsandbytes/backends/cpu_xpu_common.py
+++ b/bitsandbytes/backends/cpu_xpu_common.py
@@ -5,6 +5,7 @@
 try:
     # to support Intel CPU/GPU (XPU) backend
     import intel_extension_for_pytorch as ipex
+
     ipex_cpu = ipex if ipex._C._has_cpu() else None
     ipex_xpu = ipex if ipex._C._has_xpu() else None
 except: