diff --git a/src/device/gpoddevice.h b/src/device/gpoddevice.h
index 719b69808..a7486292c 100644
--- a/src/device/gpoddevice.h
+++ b/src/device/gpoddevice.h
@@ -100,7 +100,7 @@ class GPodDevice : public ConnectedDevice, public virtual MusicStorage {
   bool WriteDatabase(QString &error_text);
 
  protected:
-  SharedPtr <TaskManager> task_manager_;
+  const SharedPtr <TaskManager> task_manager_;
   GPodLoader *loader_;
   QThread *loader_thread_;
 
diff --git a/src/device/mtpdevice.h b/src/device/mtpdevice.h
index 451e6473a..75379c174 100644
--- a/src/device/mtpdevice.h
+++ b/src/device/mtpdevice.h
@@ -96,7 +96,7 @@ class MtpDevice : public ConnectedDevice {
  private:
   static bool sInitializedLibMTP;
 
-  SharedPtr<TaskManager> task_manager_;
+  const SharedPtr<TaskManager> task_manager_;
 
   MtpLoader *loader_;
   QThread *loader_thread_;