diff --git a/launcher/ui/widgets/ProgressWidget.cpp b/launcher/ui/widgets/ProgressWidget.cpp
index 9181de7f8..69c7e6f17 100644
--- a/launcher/ui/widgets/ProgressWidget.cpp
+++ b/launcher/ui/widgets/ProgressWidget.cpp
@@ -39,7 +39,7 @@ void ProgressWidget::progressFormat(QString format)
         m_bar->setFormat(format);
 }
 
-void ProgressWidget::watch(const Task* task)
+void ProgressWidget::watch(Task* task)
 {
     if (!task)
         return;
@@ -61,11 +61,11 @@ void ProgressWidget::watch(const Task* task)
         connect(m_task, &Task::started, this, &ProgressWidget::show);
 }
 
-void ProgressWidget::start(const Task* task)
+void ProgressWidget::start(Task* task)
 {
     watch(task);
     if (!m_task->isRunning())
-        QMetaObject::invokeMethod(const_cast<Task*>(m_task), "start", Qt::QueuedConnection);
+        QMetaObject::invokeMethod(m_task, "start", Qt::QueuedConnection);
 }
 
 bool ProgressWidget::exec(std::shared_ptr<Task> task)
diff --git a/launcher/ui/widgets/ProgressWidget.h b/launcher/ui/widgets/ProgressWidget.h
index b0458f335..4d9097b8a 100644
--- a/launcher/ui/widgets/ProgressWidget.h
+++ b/launcher/ui/widgets/ProgressWidget.h
@@ -27,10 +27,10 @@ class ProgressWidget : public QWidget {
 
    public slots:
     /** Watch the progress of a task. */
-    void watch(const Task* task);
+    void watch(Task* task);
 
     /** Watch the progress of a task, and start it if needed */
-    void start(const Task* task);
+    void start(Task* task);
 
     /** Blocking way of waiting for a task to finish. */
     bool exec(std::shared_ptr<Task> task);
@@ -50,7 +50,7 @@ class ProgressWidget : public QWidget {
    private:
     QLabel* m_label = nullptr;
     QProgressBar* m_bar = nullptr;
-    const Task* m_task = nullptr;
+    Task* m_task = nullptr;
 
     bool m_hide_if_inactive = false;
 };