diff --git a/reactos/dll/win32/wmvcore/wmvcore.h b/reactos/dll/win32/wmvcore/wmvcore.h
index f4b096313b2..ca06e0a4a6f 100644
--- a/reactos/dll/win32/wmvcore/wmvcore.h
+++ b/reactos/dll/win32/wmvcore/wmvcore.h
@@ -25,9 +25,9 @@
 #include "windef.h"
 #include "winbase.h"
 
-static inline void *heap_alloc(size_t len)
+static inline void* __WINE_ALLOC_SIZE(1) heap_alloc(size_t size)
 {
-    return HeapAlloc(GetProcessHeap(), 0, len);
+    return HeapAlloc(GetProcessHeap(), 0, size);
 }
 
 static inline BOOL heap_free(void *mem)
diff --git a/reactos/dll/win32/wmvcore/wmvcore.spec b/reactos/dll/win32/wmvcore/wmvcore.spec
index a3f23ebdc4d..bb17683b550 100644
--- a/reactos/dll/win32/wmvcore/wmvcore.spec
+++ b/reactos/dll/win32/wmvcore/wmvcore.spec
@@ -10,7 +10,7 @@
 @ stub WMCreateIndexer
 @ stdcall WMCreateProfileManager(ptr)
 @ stdcall WMCreateReader(ptr long ptr)
-@ stub WMCreateReaderPriv
+@ stdcall WMCreateReaderPriv(ptr)
 @ stdcall WMCreateSyncReader(ptr long ptr)
 @ stdcall WMCreateWriter(ptr ptr)
 @ stub WMCreateWriterFileSink
diff --git a/reactos/dll/win32/wmvcore/wmvcore_main.c b/reactos/dll/win32/wmvcore/wmvcore_main.c
index 741dd70c418..d196079698e 100644
--- a/reactos/dll/win32/wmvcore/wmvcore_main.c
+++ b/reactos/dll/win32/wmvcore/wmvcore_main.c
@@ -667,6 +667,11 @@ HRESULT WINAPI WMCreateReader(IUnknown *reserved, DWORD rights, IWMReader **ret_
     return S_OK;
 }
 
+HRESULT WINAPI WMCreateReaderPriv(IWMReader **ret_reader)
+{
+    return WMCreateReader(NULL, 0, ret_reader);
+}
+
 HRESULT WINAPI WMCreateSyncReader(IUnknown *pcert, DWORD rights, IWMSyncReader **syncreader)
 {
     FIXME("(%p, %x, %p): stub\n", pcert, rights, syncreader);
diff --git a/reactos/media/doc/README.WINE b/reactos/media/doc/README.WINE
index add4ed4fa27..f4e90b05a82 100644
--- a/reactos/media/doc/README.WINE
+++ b/reactos/media/doc/README.WINE
@@ -210,7 +210,7 @@ reactos/dll/win32/wintrust            # Synced to WineStaging-1.9.23
 reactos/dll/win32/wldap32             # Synced to WineStaging-2.2
 reactos/dll/win32/wmi                 # Synced to WineStaging-1.9.11
 reactos/dll/win32/wmiutils            # Synced to WineStaging-1.9.11
-reactos/dll/win32/wmvcore             # Synced to WineStaging-1.9.11
+reactos/dll/win32/wmvcore             # Synced to WineStaging-2.2
 reactos/dll/win32/wshom.ocx           # Synced to WineStaging-1.9.11
 reactos/dll/win32/wtsapi32            # Synced to WineStaging-1.9.11
 reactos/dll/win32/wuapi               # Synced to WineStaging-1.9.11