diff --git a/src/Vulkan/VkFence.hpp b/src/Vulkan/VkFence.hpp
index b803230..5fe3e85 100644
--- a/src/Vulkan/VkFence.hpp
+++ b/src/Vulkan/VkFence.hpp
@@ -75,6 +75,7 @@
 
 private:
 	Fence(const Fence&) = delete;
+	~Fence() = delete;
 	Fence& operator = (const Fence&) = delete;
 
 	sw::WaitGroup wg;
diff --git a/src/Vulkan/VkQueue.cpp b/src/Vulkan/VkQueue.cpp
index 73e3602..262bef6 100644
--- a/src/Vulkan/VkQueue.cpp
+++ b/src/Vulkan/VkQueue.cpp
@@ -183,14 +183,14 @@
 VkResult Queue::waitIdle()
 {
 	// Wait for task queue to flush.
-	vk::Fence fence;
-	fence.start();
+	sw::WaitGroup wg;
+	wg.add();
 
 	Task task;
-	task.events = &fence;
+	task.events = &wg;
 	pending.put(task);
 
-	fence.wait();
+	wg.wait();
 
 	garbageCollect();