diff --git a/tox.ini b/tox.ini
index 8d6326b..4542329 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,7 +32,7 @@ skip_install = True
 usedevelop = False
 deps = flake8
 commands =
-    flake8 --ignore=E203 --max-line-length 90 astroalign.py setup.py tests {posargs}
+    flake8 --ignore=E203 --max-line-length 90 astroalign.py tests {posargs}
 
 
 [testenv:docstyle]