diff --git a/fuxi/opts.py b/fuxi/opts.py
index 35a08ec..4e60436 100644
--- a/fuxi/opts.py
+++ b/fuxi/opts.py
@@ -10,14 +10,14 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-__all__ = [
-    'list_fuxi_opts',
-]
-
 import itertools
 
 from fuxi.common import config
 
+__all__ = [
+    'list_fuxi_opts',
+]
+
 
 def list_fuxi_opts():
     return [