diff --git a/src/Deferred.cpp b/src/Deferred.cpp
index 3ae3fd0106..924a486549 100644
--- a/src/Deferred.cpp
+++ b/src/Deferred.cpp
@@ -110,6 +110,10 @@ void Deferred::SetupResources()
 		SetupRenderTarget(MASKS, texDesc, srvDesc, rtvDesc, uavDesc, DXGI_FORMAT_R11G11B10_FLOAT, D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
 		// Masks2 (vertexAO; fp16 to allow blending)
 		SetupRenderTarget(MASKS2, texDesc, srvDesc, rtvDesc, uavDesc, DXGI_FORMAT_R16_UNORM, D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
+
+		// TAA water history buffers need RGBA16: alpha stores premultiplied coverage for ISWaterBlend
+		SetupRenderTarget(RE::RENDER_TARGETS::kWATER_1, texDesc, srvDesc, rtvDesc, uavDesc, DXGI_FORMAT_R16G16B16A16_FLOAT, D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
+		SetupRenderTarget(RE::RENDER_TARGETS::kWATER_2, texDesc, srvDesc, rtvDesc, uavDesc, DXGI_FORMAT_R16G16B16A16_FLOAT, D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
 	}
 
 	{