diff --git a/examples/api-server/deploy.yaml b/examples/api-server/deploy.yaml
index 97f623e0743..0bb27cd7e4e 100644
--- a/examples/api-server/deploy.yaml
+++ b/examples/api-server/deploy.yaml
@@ -1,5 +1,6 @@
 resources:
   cpus: 4+
+  ports: 46580
 
 
 setup: |
diff --git a/sky/resources.py b/sky/resources.py
index 07c5c22bd94..8d8dc3bbe6e 100644
--- a/sky/resources.py
+++ b/sky/resources.py
@@ -179,9 +179,9 @@ def __init__(
         # TODO(zhwu): if region/zone is not valid, this dict will have wrong
         # keys.
         assert image_id is None or (
-            self._region is not None or self._zone is not None
-        ), (f'image_id {image_id} specified when region and zone are set, '
-            'which is not supported yet.')
+            self._region is not None or self._zone is not None), (
+                f'image_id {image_id} specified when region and zone are set, '
+                'which is not supported yet.')
         self._image_id = image_id
         if isinstance(image_id, str):
             self._image_id = {self._region: image_id.strip()}