diff --git a/dygraph/paddleseg/utils/utils.py b/dygraph/paddleseg/utils/utils.py
index 853773606af4d4c5bc996d98a5740b090688dc63..063aedbfe7eff83a72f216743b8405458b67cafc 100644
--- a/dygraph/paddleseg/utils/utils.py
+++ b/dygraph/paddleseg/utils/utils.py
@@ -50,8 +50,8 @@ def load_entire_model(model, pretrained):
         if os.path.exists(pretrained):
             load_pretrained_model(model, pretrained)
         else:
-            raise Exception('Pretrained model is not found: {}'.format(
-                pretrained))
+            raise Exception(
+                'Pretrained model is not found: {}'.format(pretrained))
     else:
         logger.warning('Not all pretrained params of {} to load, '\
              'training from scratch or a pretrained backbone'.format(model.__class__.__name__))