diff --git a/HySoP/hysop/operator/discrete/penalize_vorticity.py b/HySoP/hysop/operator/discrete/penalize_vorticity.py
deleted file mode 100644
index 279bf74b399ec6dc2d9a0aaccfb6e2847dfed021..0000000000000000000000000000000000000000
--- a/HySoP/hysop/operator/discrete/penalize_vorticity.py
+++ /dev/null
@@ -1,7 +0,0 @@
-# -*- coding: utf-8 -*-
-"""Discrete operators for penalization problem.
-"""
-from hysop.constants import debug
-from hysop.operator.discrete.penalization import Penalization
-
-
diff --git a/HySoP/hysop/operator/penalize_vorticity.py b/HySoP/hysop/operator/penalize_vorticity.py
deleted file mode 100644
index adaa33a24b39ea70487911c837643cbdd9d09645..0000000000000000000000000000000000000000
--- a/HySoP/hysop/operator/penalize_vorticity.py
+++ /dev/null
@@ -1,3 +0,0 @@
-# -*- coding: utf-8 -*-
-"""Compute the vorticity field from velocity using penalization.
-"""