diff --git a/setup.cfg b/setup.cfg
index 2f23057e6..08564869c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,11 +1,10 @@
 [tool:pytest]
 flake8-max-line-length = 180
-flake8-exclude =
-    xonsh/pygments_cache.py
 flake8-ignore =
     *.py E122
     *.py E402
     tests/tools.py E128
+    xonsh/pygments_cache.py ALL
     # flake8 gives incorrect unused import errors, F401
     xonsh/ast.py F401
     xonsh/platform.py F401