diff --git a/bin/lesson_check.py b/bin/lesson_check.py
index 78d78b2d..84c28f37 100755
--- a/bin/lesson_check.py
+++ b/bin/lesson_check.py
@@ -35,7 +35,6 @@
     '%/README.md': False,
     '%/_extras/discuss.md': True,
     '%/_extras/guide.md': True,
-    '%/_config.yml': True,
     '%/index.md': True,
     '%/reference.md': True,
     '%/setup.md': True,