diff --git a/sky/provision/kubernetes/instance.py b/sky/provision/kubernetes/instance.py
index 7c07ea0fb86..41b4aaa6236 100644
--- a/sky/provision/kubernetes/instance.py
+++ b/sky/provision/kubernetes/instance.py
@@ -180,7 +180,8 @@ def _raise_pod_scheduling_errors(namespace, context, new_nodes):
                             #  case we will need to update this logic.
                             # TODO(Doyoung): Update the error message raised
                             # with the multi-host TPU support.
-                            gpu_resource_key = kubernetes_utils.get_gpu_resource_key()
+                            gpu_resource_key = kubernetes_utils.get_gpu_resource_key(
+                            )
                             if 'Insufficient google.com/tpu' in event_message:
                                 extra_msg = (
                                     f'Verify if '
@@ -199,8 +200,10 @@ def _raise_pod_scheduling_errors(namespace, context, new_nodes):
                                    in event_message)):
                                 extra_msg = (
                                     f'Verify if any node matching label  '
-                                    f'{pod.spec.node_selector[label_key]} and sufficient '
-                                    f'resource {gpu_resource_key} is available in the cluster.')
+                                    f'{pod.spec.node_selector[label_key]} and '
+                                    f'sufficient resource {gpu_resource_key} is '
+                                    f'available in the cluster.'
+                                )
                                 raise config_lib.KubernetesError(
                                     _lack_resource_msg('GPU',
                                                        pod,
diff --git a/sky/provision/kubernetes/utils.py b/sky/provision/kubernetes/utils.py
index b7a10d9c173..2df199de8e1 100644
--- a/sky/provision/kubernetes/utils.py
+++ b/sky/provision/kubernetes/utils.py
@@ -2427,6 +2427,7 @@ def get_gpu_resource_key():
     Returns:
         str: The selected GPU resource name.
     """
-    # Retrieve GPU resource name from environment variable, if set. Else use default.
+    # Retrieve GPU resource name from environment variable, if set.
+    # Else use default.
     # E.g., can be nvidia.com/gpu-h100, amd.com/gpu etc.
-    return os.getenv('CUSTOM_GPU_RESOURCE_KEY', default = GPU_RESOURCE_KEY)
+    return os.getenv('CUSTOM_GPU_RESOURCE_KEY', default=GPU_RESOURCE_KEY)