diff --git a/src/d3d11/d3d11_buffer.cpp b/src/d3d11/d3d11_buffer.cpp
index a3c514a1..4448e46d 100644
--- a/src/d3d11/d3d11_buffer.cpp
+++ b/src/d3d11/d3d11_buffer.cpp
@@ -16,6 +16,9 @@ namespace dxvk {
   
   
   HRESULT D3D11Buffer::QueryInterface(REFIID riid, void** ppvObject) {
+    COM_QUERY_IFACE(riid, ppvObject, IUnknown);
+    COM_QUERY_IFACE(riid, ppvObject, ID3D11DeviceChild);
+    COM_QUERY_IFACE(riid, ppvObject, ID3D11Resource);
     COM_QUERY_IFACE(riid, ppvObject, ID3D11Buffer);
     
     Logger::warn("D3D11Buffer::QueryInterface: Unknown interface query");
diff --git a/src/d3d11/d3d11_context.cpp b/src/d3d11/d3d11_context.cpp
index e5e8f895..0199ac6b 100644
--- a/src/d3d11/d3d11_context.cpp
+++ b/src/d3d11/d3d11_context.cpp
@@ -20,6 +20,8 @@ namespace dxvk {
   HRESULT D3D11DeviceContext::QueryInterface(
           REFIID  riid,
           void**  ppvObject) {
+    COM_QUERY_IFACE(riid, ppvObject, IUnknown);
+    COM_QUERY_IFACE(riid, ppvObject, ID3D11DeviceChild);
     COM_QUERY_IFACE(riid, ppvObject, ID3D11DeviceContext);
     
     Logger::warn("D3D11DeviceContext::QueryInterface: Unknown interface query");
diff --git a/src/d3d11/d3d11_device.cpp b/src/d3d11/d3d11_device.cpp
index fec4122a..d74a950b 100644
--- a/src/d3d11/d3d11_device.cpp
+++ b/src/d3d11/d3d11_device.cpp
@@ -28,6 +28,7 @@ namespace dxvk {
   
   
   HRESULT D3D11Device::QueryInterface(REFIID riid, void** ppvObject) {
+    COM_QUERY_IFACE(riid, ppvObject, IUnknown);
     COM_QUERY_IFACE(riid, ppvObject, ID3D11Device);
     
     if (riid == __uuidof(IDXVKDevice)