diff --git a/WickedEngine/wiGraphicsDevice_DX12.cpp b/WickedEngine/wiGraphicsDevice_DX12.cpp
index f85350725..ba724ddaa 100644
--- a/WickedEngine/wiGraphicsDevice_DX12.cpp
+++ b/WickedEngine/wiGraphicsDevice_DX12.cpp
@@ -5701,15 +5701,12 @@ std::mutex queue_locker;
 
 	void GraphicsDevice_DX12::ClearPipelineStateCache()
 	{
-		allocationhandler->destroylocker.lock();
-
 		pipelines_global.clear();
 
 		for (auto& x : commandlists)
 		{
 			x->pipelines_worker.clear();
 		}
-		allocationhandler->destroylocker.unlock();
 	}
 
 	Texture GraphicsDevice_DX12::GetBackBuffer(const SwapChain* swapchain) const
diff --git a/WickedEngine/wiGraphicsDevice_Vulkan.cpp b/WickedEngine/wiGraphicsDevice_Vulkan.cpp
index 2b20f27e1..501dc6d47 100644
--- a/WickedEngine/wiGraphicsDevice_Vulkan.cpp
+++ b/WickedEngine/wiGraphicsDevice_Vulkan.cpp
@@ -6795,8 +6795,6 @@ using namespace vulkan_internal;
 	}
 	void GraphicsDevice_Vulkan::ClearPipelineStateCache()
 	{
-		allocationhandler->destroylocker.lock();
-
 		layout_locker.lock();
 		pso_layouts.clear();
 		layout_locker.unlock();
@@ -6807,7 +6805,6 @@ using namespace vulkan_internal;
 		{
 			x->pipelines_worker.clear();
 		}
-		allocationhandler->destroylocker.unlock();
 
 		if (pipelineCache != VK_NULL_HANDLE)
 		{