diff --git a/include/vkd3d_d3d12.idl b/include/vkd3d_d3d12.idl
index a0c09ef8..34e86975 100644
--- a/include/vkd3d_d3d12.idl
+++ b/include/vkd3d_d3d12.idl
@@ -53,9 +53,15 @@ const UINT D3D12_REQ_TEXTURECUBE_DIMENSION = 16384;
 const UINT D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES = 0xffffffff;
 const UINT D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT = 8;
 const UINT D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT = 256;
+const UINT D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 4194304;
 const UINT D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
+const UINT D3D12_RAW_UAV_SRV_BYTE_ALIGNMENT = 16;
+const UINT D3D12_SMALL_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
+const UINT D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT = 4096;
+const UINT D3D12_STANDARD_MAXIMUM_ELEMENT_ALIGNMENT_BYTE_MULTIPLE = 4;
 const UINT D3D12_TEXTURE_DATA_PITCH_ALIGNMENT = 256;
 const UINT D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT = 512;
+const UINT D3D12_UAV_COUNTER_PLACEMENT_ALIGNMENT = 4096;
 const UINT D3D12_VS_INPUT_REGISTER_COUNT = 32;
 const UINT D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE = 16;