diff --git a/setup.cfg b/setup.cfg
index ecf3bdb..95c89af 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -7,5 +7,5 @@ with-doctest=1
 universal=1
 
 [flake8]
-exclude = .git,.tox,.github,.eggs,__pycache__,doc/conf.py,build,dist,capabilities-data,test
+exclude = .git,.tox,.github,.eggs,__pycache__,doc/conf.py,build,dist,capabilities-data,test,src/escpos/constants.py
 max-line-length = 120