diff --git a/Makefile b/Makefile
index cc9d88726b044b49dc0d4800bb3a3e3547172191..93506bf15cac82f01c3f1ac7a6287daa0359f1ce 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ mypy:
 pylint:
 	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613 --enable=C0121,C0202,C0321 --jobs=0 duniterpy/
 	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613 --enable=C0121,C0202,C0321 --jobs=0 tests/
-	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613 --enable=C0121,C0202,C0321 --jobs=0 examples/
+	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613,E0401 --enable=C0121,C0202,C0321 --jobs=0 examples/
 
 # check format
 check-format: