diff --git a/src/Mod/Surface/Gui/TaskFilling.cpp b/src/Mod/Surface/Gui/TaskFilling.cpp
index 090a52e4a4..9845802772 100644
--- a/src/Mod/Surface/Gui/TaskFilling.cpp
+++ b/src/Mod/Surface/Gui/TaskFilling.cpp
@@ -272,11 +272,10 @@ FillingPanel::FillingPanel(ViewProviderFilling* vp, Surface::Filling* obj)
     action->setShortcut(QString::fromLatin1("Del"));
     action->setShortcutContext(Qt::WidgetShortcut);
     ui->listBoundary->addAction(action);
-    connect(action, SIGNAL(triggered()), this, SLOT(onDeleteEdge()));
+    connect(action, &QAction::triggered, this, &FillingPanel::onDeleteEdge);
     ui->listBoundary->setContextMenuPolicy(Qt::ActionsContextMenu);
 
-    connect(ui->listBoundary->model(),
-        SIGNAL(rowsMoved(QModelIndex, int, int, QModelIndex, int)), this, SLOT(onIndexesMoved()));
+    connect(ui->listBoundary->model(), &QAbstractItemModel::rowsMoved, this, &FillingPanel::onIndexesMoved);
 }
 
 /*
diff --git a/src/Mod/Surface/Gui/TaskFillingEdge.cpp b/src/Mod/Surface/Gui/TaskFillingEdge.cpp
index 0329b6eab3..9cc17a9f73 100644
--- a/src/Mod/Surface/Gui/TaskFillingEdge.cpp
+++ b/src/Mod/Surface/Gui/TaskFillingEdge.cpp
@@ -130,7 +130,7 @@ FillingEdgePanel::FillingEdgePanel(ViewProviderFilling* vp, Surface::Filling* ob
     action->setShortcut(QString::fromLatin1("Del"));
     action->setShortcutContext(Qt::WidgetShortcut);
     ui->listUnbound->addAction(action);
-    connect(action, SIGNAL(triggered()), this, SLOT(onDeleteUnboundEdge()));
+    connect(action, &QAction::triggered, this, &FillingEdgePanel::onDeleteUnboundEdge);
     ui->listUnbound->setContextMenuPolicy(Qt::ActionsContextMenu);
 }
 
diff --git a/src/Mod/Surface/Gui/TaskFillingVertex.cpp b/src/Mod/Surface/Gui/TaskFillingVertex.cpp
index 3d38679764..f5084f8f28 100644
--- a/src/Mod/Surface/Gui/TaskFillingVertex.cpp
+++ b/src/Mod/Surface/Gui/TaskFillingVertex.cpp
@@ -122,7 +122,7 @@ FillingVertexPanel::FillingVertexPanel(ViewProviderFilling* vp, Surface::Filling
     action->setShortcut(QString::fromLatin1("Del"));
     action->setShortcutContext(Qt::WidgetShortcut);
     ui->listFreeVertex->addAction(action);
-    connect(action, SIGNAL(triggered()), this, SLOT(onDeleteVertex()));
+    connect(action, &QAction::triggered, this, &FillingVertexPanel::onDeleteVertex);
     ui->listFreeVertex->setContextMenuPolicy(Qt::ActionsContextMenu);
 }
 
diff --git a/src/Mod/Surface/Gui/TaskGeomFillSurface.cpp b/src/Mod/Surface/Gui/TaskGeomFillSurface.cpp
index f62cc79066..58c2944520 100644
--- a/src/Mod/Surface/Gui/TaskGeomFillSurface.cpp
+++ b/src/Mod/Surface/Gui/TaskGeomFillSurface.cpp
@@ -207,11 +207,11 @@ GeomFillSurface::GeomFillSurface(ViewProviderGeomFillSurface* vp, Surface::GeomF
     QAction* remove = new QAction(tr("Remove"), this);
     remove->setShortcut(QString::fromLatin1("Del"));
     ui->listWidget->addAction(remove);
-    connect(remove, SIGNAL(triggered()), this, SLOT(onDeleteEdge()));
+    connect(remove, &QAction::triggered, this, &GeomFillSurface::onDeleteEdge);
 
     QAction* orientation = new QAction(tr("Flip orientation"), this);
     ui->listWidget->addAction(orientation);
-    connect(orientation, SIGNAL(triggered()), this, SLOT(onFlipOrientation()));
+    connect(orientation, &QAction::triggered, this, &GeomFillSurface::onFlipOrientation);
 
     ui->listWidget->setContextMenuPolicy(Qt::ActionsContextMenu);
 }
diff --git a/src/Mod/Surface/Gui/TaskSections.cpp b/src/Mod/Surface/Gui/TaskSections.cpp
index f5c7f35d27..7db0e5368d 100644
--- a/src/Mod/Surface/Gui/TaskSections.cpp
+++ b/src/Mod/Surface/Gui/TaskSections.cpp
@@ -266,11 +266,10 @@ SectionsPanel::SectionsPanel(ViewProviderSections* vp, Surface::Sections* obj) :
     QAction* action = new QAction(tr("Remove"), this);
     action->setShortcut(QKeySequence::Delete);
     ui->listSections->addAction(action);
-    connect(action, SIGNAL(triggered()), this, SLOT(onDeleteEdge()));
+    connect(action, &QAction::triggered, this, &SectionsPanel::onDeleteEdge);
     ui->listSections->setContextMenuPolicy(Qt::ActionsContextMenu);
 
-    connect(ui->listSections->model(),
-        SIGNAL(rowsMoved(QModelIndex, int, int, QModelIndex, int)), this, SLOT(onIndexesMoved()));
+    connect(ui->listSections->model(), &QAbstractItemModel::rowsMoved, this, &SectionsPanel::onIndexesMoved);
 }
 
 /*