diff --git a/xarray/core/duck_array_ops.py b/xarray/core/duck_array_ops.py
index 8831b9f2cea..927400a7a23 100644
--- a/xarray/core/duck_array_ops.py
+++ b/xarray/core/duck_array_ops.py
@@ -40,12 +40,12 @@
 
 # remove once numpy 2.0 is the oldest supported version
 if module_available("numpy", minversion="2.0.0.dev0"):
-    from numpy.lib.array_utils import (
-        normalize_axis_index,  # type: ignore[import-not-found]
+    from numpy.lib.array_utils import (  # type: ignore[import-not-found]
+        normalize_axis_index,
     )
 else:
-    from numpy.core.multiarray import (
-        normalize_axis_index,  # type: ignore[attr-defined,no-redef]
+    from numpy.core.multiarray import (  # type: ignore[attr-defined,no-redef]
+        normalize_axis_index,
     )
 
 
diff --git a/xarray/core/nputils.py b/xarray/core/nputils.py
index 5b8d5242df0..b24846c9448 100644
--- a/xarray/core/nputils.py
+++ b/xarray/core/nputils.py
@@ -12,12 +12,12 @@
 
 # remove once numpy 2.0 is the oldest supported version
 if module_available("numpy", minversion="2.0.0.dev0"):
-    from numpy.lib.array_utils import (
-        normalize_axis_index,  # type: ignore[import-not-found]
+    from numpy.lib.array_utils import (  # type: ignore[import-not-found]
+        normalize_axis_index,
     )
 else:
-    from numpy.core.multiarray import (
-        normalize_axis_index,  # type: ignore[attr-defined,no-redef]
+    from numpy.core.multiarray import (  # type: ignore[attr-defined,no-redef]
+        normalize_axis_index,
     )
 
 # remove once numpy 2.0 is the oldest supported version