diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b26f41b3322d17758ad02e60151f96b9b33a2761..65e9763d7639d0745c5d793f88322c13f0603f00 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,8 +9,9 @@ pycodestyle:
     # Run pycodestyle (PEP8) check.
     # https://pycodestyle.readthedocs.io/en/latest/intro.html#error-codes
     # Ignored errors:
+    # - E128: continuation line under-indented for visual indent
     # - E501: line too long
     # - E731: do not assign a lambda expression, use a def
     # - W504: line break after binary operator (conflicts with old pep8 package)
     # - W505: doc line too long
-    - pycodestyle --ignore=E501,E731,W504,W505 .
+    - pycodestyle --ignore=E128,E501,E731,W504,W505 .