diff --git a/intern/cycles/util/util_task.cpp b/intern/cycles/util/util_task.cpp
index 61aa28c6815..3599c99eb96 100644
--- a/intern/cycles/util/util_task.cpp
+++ b/intern/cycles/util/util_task.cpp
@@ -59,9 +59,9 @@ void TaskPool::push(Task *task, bool front)
   TaskScheduler::push(entry, front);
 }
 
-void TaskPool::push(const TaskRunFunction &run, bool front)
+void TaskPool::push(TaskRunFunction &&run, bool front)
 {
-  push(new Task(run), front);
+  push(new Task(std::move(run)), front);
 }
 
 void TaskPool::wait_work(Summary *stats)
@@ -478,9 +478,9 @@ void DedicatedTaskPool::push(Task *task, bool front)
   queue_mutex.unlock();
 }
 
-void DedicatedTaskPool::push(const TaskRunFunction &run, bool front)
+void DedicatedTaskPool::push(TaskRunFunction &&run, bool front)
 {
-  push(new Task(run), front);
+  push(new Task(std::move(run)), front);
 }
 
 void DedicatedTaskPool::wait()
diff --git a/intern/cycles/util/util_task.h b/intern/cycles/util/util_task.h
index fd30a33d8ef..17ff47cb2d8 100644
--- a/intern/cycles/util/util_task.h
+++ b/intern/cycles/util/util_task.h
@@ -51,7 +51,7 @@ typedef function<void(int thread_id)> TaskRunFunction;
 class Task {
  public:
   Task(){};
-  explicit Task(const TaskRunFunction &run_) : run(run_)
+  explicit Task(TaskRunFunction &&run_) : run(run_)
   {
   }
 
@@ -90,7 +90,7 @@ class TaskPool {
   ~TaskPool();
 
   void push(Task *task, bool front = false);
-  void push(const TaskRunFunction &run, bool front = false);
+  void push(TaskRunFunction &&run, bool front = false);
 
   void wait_work(Summary *stats = NULL); /* work and wait until all tasks are done */
   void cancel();                         /* cancel all tasks, keep worker threads running */
@@ -180,7 +180,7 @@ class DedicatedTaskPool {
   ~DedicatedTaskPool();
 
   void push(Task *task, bool front = false);
-  void push(const TaskRunFunction &run, bool front = false);
+  void push(TaskRunFunction &&run, bool front = false);
 
   void wait();   /* wait until all tasks are done */
   void cancel(); /* cancel all tasks, keep worker thread running */