diff --git a/src/Mod/TechDraw/Gui/TaskCosVertex.cpp b/src/Mod/TechDraw/Gui/TaskCosVertex.cpp
index ee63e2f31b..11aa67edbe 100644
--- a/src/Mod/TechDraw/Gui/TaskCosVertex.cpp
+++ b/src/Mod/TechDraw/Gui/TaskCosVertex.cpp
@@ -211,8 +211,8 @@ void TaskCosVertex::startTracker(void)
     if (!m_tracker) {
         m_tracker = new QGTracker(m_scene, m_trackerMode);
         QObject::connect(
-            m_tracker, SIGNAL(drawingFinished(std::vector<QPointF>, QGIView*)),
-            this, SLOT(onTrackerFinished(std::vector<QPointF>, QGIView*))
+            m_tracker, &QGTracker::drawingFinished,
+            this, &TaskCosVertex::onTrackerFinished
         );
     }
     else {
diff --git a/src/Mod/TechDraw/Gui/TaskLeaderLine.cpp b/src/Mod/TechDraw/Gui/TaskLeaderLine.cpp
index aefdf36028..32a6747d8d 100644
--- a/src/Mod/TechDraw/Gui/TaskLeaderLine.cpp
+++ b/src/Mod/TechDraw/Gui/TaskLeaderLine.cpp
@@ -613,8 +613,8 @@ void TaskLeaderLine::startTracker(void)
     if (!m_tracker) {
         m_tracker = new QGTracker(m_scene, m_trackerMode);
         QObject::connect(
-            m_tracker, SIGNAL(drawingFinished(std::vector<QPointF>, QGIView*)),
-            this     , SLOT  (onTrackerFinished(std::vector<QPointF>, QGIView*))
+            m_tracker, &QGTracker::drawingFinished,
+            this     , &TaskLeaderLine::onTrackerFinished
            );
     } else {
         //this is too harsh. but need to avoid restarting process