diff --git a/.flake8 b/.flake8
index 9e6159ce9b1d62c725a0121149fc1d14e5663e99..e0e589f82f91904211b2fc9d52f746559bb1c15d 100644
--- a/.flake8
+++ b/.flake8
@@ -30,7 +30,6 @@ ignore =
 
     # W, see https://pycodestyle.pycqa.org/en/latest/intro.html#error-codes
     W503,W504
-    W605
 per-file-ignores =
     # These files need tabs for testing.
     python/paddle/fluid/tests/unittests/dygraph_to_static/test_error.py:E101,W191