diff --git a/src/widgets/pageview.cpp b/src/widgets/pageview.cpp
--- a/src/widgets/pageview.cpp
+++ b/src/widgets/pageview.cpp
@@ -402,7 +402,7 @@
     Q_ASSERT(task); // the action is supposed to be disabled otherwise
     if (task->startDate().isNull())
         task->setStartDate(QDateTime::currentDateTime());
-    m_runningTaskModel->setProperty("runningTask", QVariant::fromValue(task));
+    m_runningTaskModel->setRunningTask(task);
 }
 
 void PageView::onRunningTaskChanged(const Domain::Task::Ptr &task)
diff --git a/src/widgets/runningtaskwidget.cpp b/src/widgets/runningtaskwidget.cpp
--- a/src/widgets/runningtaskwidget.cpp
+++ b/src/widgets/runningtaskwidget.cpp
@@ -116,12 +116,12 @@
 
 void RunningTaskWidget::onTaskRunStopped()
 {
-    QMetaObject::invokeMethod(m_model, "stopTask");
+    m_model->stopTask();
 }
 
 void RunningTaskWidget::onTaskRunDone()
 {
-    QMetaObject::invokeMethod(m_model, "doneTask");
+    m_model->doneTask();
 }
 
 void RunningTaskWidget::resize()
diff --git a/tests/units/widgets/pageviewtest.cpp b/tests/units/widgets/pageviewtest.cpp
--- a/tests/units/widgets/pageviewtest.cpp
+++ b/tests/units/widgets/pageviewtest.cpp
@@ -118,7 +118,6 @@
 public:
     Domain::Task::Ptr runningTask() const Q_DECL_OVERRIDE { return m_runningTask; }
     void setRunningTask(const Domain::Task::Ptr &task) Q_DECL_OVERRIDE { m_runningTask = task; }
-public slots:
     void stopTask() Q_DECL_OVERRIDE {}
     void doneTask() Q_DECL_OVERRIDE {}
 private:
diff --git a/tests/units/widgets/runningtaskwidgettest.cpp b/tests/units/widgets/runningtaskwidgettest.cpp
--- a/tests/units/widgets/runningtaskwidgettest.cpp
+++ b/tests/units/widgets/runningtaskwidgettest.cpp
@@ -38,7 +38,6 @@
         emit runningTaskChanged(m_runningTask);
     }
 
-public slots:
     void stopTask() Q_DECL_OVERRIDE
     {
         Q_ASSERT(m_runningTask);
diff --git a/tests/units/widgets/taskapplicationcomponentstest.cpp b/tests/units/widgets/taskapplicationcomponentstest.cpp
--- a/tests/units/widgets/taskapplicationcomponentstest.cpp
+++ b/tests/units/widgets/taskapplicationcomponentstest.cpp
@@ -36,7 +36,6 @@
 public:
     Domain::Task::Ptr runningTask() const Q_DECL_OVERRIDE { return {}; }
     void setRunningTask(const Domain::Task::Ptr &) Q_DECL_OVERRIDE {}
-public slots:
     void stopTask() Q_DECL_OVERRIDE {}
     void doneTask() Q_DECL_OVERRIDE {}
 };