diff --git a/src/Mod/PartDesign/App/FeatureExtrude.cpp b/src/Mod/PartDesign/App/FeatureExtrude.cpp
index 765ea8ae69..23cbd25cee 100644
--- a/src/Mod/PartDesign/App/FeatureExtrude.cpp
+++ b/src/Mod/PartDesign/App/FeatureExtrude.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (c) 2010 Juergen Riegel <FreeCAD@juergen-riegel.net>        *
+ *   Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net>     *
  *                                                                         *
  *   This file is part of the FreeCAD CAx development system.              *
  *                                                                         *
diff --git a/src/Mod/PartDesign/App/FeatureExtrude.h b/src/Mod/PartDesign/App/FeatureExtrude.h
index cfa1522de8..07598aa038 100644
--- a/src/Mod/PartDesign/App/FeatureExtrude.h
+++ b/src/Mod/PartDesign/App/FeatureExtrude.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (c) 2010 Juergen Riegel <FreeCAD@juergen-riegel.net>        *
+ *   Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net>     *
  *                                                                         *
  *   This file is part of the FreeCAD CAx development system.              *
  *                                                                         *
diff --git a/src/Mod/PartDesign/Gui/TaskExtrudeParameters.cpp b/src/Mod/PartDesign/Gui/TaskExtrudeParameters.cpp
index efc8c70dc0..a665c6aa44 100644
--- a/src/Mod/PartDesign/Gui/TaskExtrudeParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskExtrudeParameters.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (c) 2011 Juergen Riegel <FreeCAD@juergen-riegel.net>        *
+ *   Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net>     *
  *                                                                         *
  *   This file is part of the FreeCAD CAx development system.              *
  *                                                                         *
diff --git a/src/Mod/PartDesign/Gui/TaskExtrudeParameters.h b/src/Mod/PartDesign/Gui/TaskExtrudeParameters.h
index ae85079720..0e9e6c186f 100644
--- a/src/Mod/PartDesign/Gui/TaskExtrudeParameters.h
+++ b/src/Mod/PartDesign/Gui/TaskExtrudeParameters.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (c) 2011 Juergen Riegel <FreeCAD@juergen-riegel.net>        *
+ *   Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net>     *
  *                                                                         *
  *   This file is part of the FreeCAD CAx development system.              *
  *                                                                         *