diff --git a/dlls/mf/main.c b/dlls/mf/main.c
index 1b00ea502e4..8500cd9cef8 100644
--- a/dlls/mf/main.c
+++ b/dlls/mf/main.c
@@ -328,3 +328,18 @@ HRESULT WINAPI MFShutdownObject(IUnknown *object)
 
     return S_OK;
 }
+
+/***********************************************************************
+ *      MFEnumDeviceSources (mf.@)
+ */
+HRESULT WINAPI MFEnumDeviceSources(IMFAttributes *attributes, IMFActivate ***sources, UINT32 *count)
+{
+    FIXME("%p, %p, %p.\n", attributes, sources, count);
+
+    if (!attributes || !sources || !count)
+        return E_INVALIDARG;
+
+    *count = 0;
+
+    return S_OK;
+}
diff --git a/dlls/mf/mf.spec b/dlls/mf/mf.spec
index dd3d6d06889..9e3f6caef86 100644
--- a/dlls/mf/mf.spec
+++ b/dlls/mf/mf.spec
@@ -70,7 +70,7 @@
 @ stub MFCreateVideoRendererActivate
 @ stub MFCreateWMAEncoderActivate
 @ stub MFCreateWMVEncoderActivate
-@ stub MFEnumDeviceSources
+@ stdcall MFEnumDeviceSources(ptr ptr ptr)
 @ stub MFGetMultipleServiceProviders
 @ stdcall MFGetService(ptr ptr ptr ptr)
 @ stdcall MFGetSupportedMimeTypes(ptr)
diff --git a/include/mfidl.idl b/include/mfidl.idl
index 2bdb33938ae..64d39db77ef 100644
--- a/include/mfidl.idl
+++ b/include/mfidl.idl
@@ -480,6 +480,7 @@ cpp_quote("HRESULT WINAPI MFCreateSystemTimeSource(IMFPresentationTimeSource **t
 cpp_quote("HRESULT WINAPI MFCreateTopology(IMFTopology **topology);")
 cpp_quote("HRESULT WINAPI MFCreateTopologyNode(MF_TOPOLOGY_TYPE node_type, IMFTopologyNode **node);")
 cpp_quote("HRESULT WINAPI MFCreateTopoLoader(IMFTopoLoader **loader);")
+cpp_quote("HRESULT WINAPI MFEnumDeviceSources(IMFAttributes *attributes, IMFActivate ***sources, UINT32 *count);")
 cpp_quote("HRESULT WINAPI MFGetSupportedMimeTypes(PROPVARIANT *array);")
 cpp_quote("HRESULT WINAPI MFGetService(IUnknown *object, REFGUID service, REFIID iid, void **obj);")
 cpp_quote("MFTIME  WINAPI MFGetSystemTime(void);")