diff --git a/renderdoc/driver/d3d11/d3d11_device.cpp b/renderdoc/driver/d3d11/d3d11_device.cpp
index fd7c57178..0ccbb14fa 100644
--- a/renderdoc/driver/d3d11/d3d11_device.cpp
+++ b/renderdoc/driver/d3d11/d3d11_device.cpp
@@ -335,6 +335,11 @@ ULONG STDMETHODCALLTYPE DummyID3D11InfoQueue::Release()
   return 1;
 }
 
+HRESULT STDMETHODCALLTYPE DummyID3D11Debug::QueryInterface(REFIID riid, void **ppvObject)
+{
+  return m_pDevice->QueryInterface(riid, ppvObject);
+}
+
 ULONG STDMETHODCALLTYPE DummyID3D11Debug::AddRef()
 {
   m_pDevice->AddRef();
diff --git a/renderdoc/driver/d3d11/d3d11_device.h b/renderdoc/driver/d3d11/d3d11_device.h
index 61630c9ec..9c853fdf5 100644
--- a/renderdoc/driver/d3d11/d3d11_device.h
+++ b/renderdoc/driver/d3d11/d3d11_device.h
@@ -276,7 +276,7 @@ struct DummyID3D11Debug : public ID3D11Debug
   DummyID3D11Debug() : m_pDevice(NULL) {}
   //////////////////////////////
   // implement IUnknown
-  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject) { return E_NOINTERFACE; }
+  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
   ULONG STDMETHODCALLTYPE AddRef();
   ULONG STDMETHODCALLTYPE Release();