diff --git a/dlls/quartz/acmwrapper.c b/dlls/quartz/acmwrapper.c
index d9a94a92411..3c1c7cffaac 100644
--- a/dlls/quartz/acmwrapper.c
+++ b/dlls/quartz/acmwrapper.c
@@ -55,7 +55,7 @@ static const IBaseFilterVtbl ACMWrapper_Vtbl;
 
 static inline ACMWrapperImpl *impl_from_TransformFilter( TransformFilter *iface )
 {
-    return CONTAINING_RECORD(iface, ACMWrapperImpl, tf.filter);
+    return CONTAINING_RECORD(iface, ACMWrapperImpl, tf);
 }
 
 static HRESULT WINAPI ACMWrapper_Receive(TransformFilter *tf, IMediaSample *pSample)
diff --git a/dlls/quartz/avidec.c b/dlls/quartz/avidec.c
index 1a58844c38d..eb9b223f5c1 100644
--- a/dlls/quartz/avidec.c
+++ b/dlls/quartz/avidec.c
@@ -54,7 +54,7 @@ static const IBaseFilterVtbl AVIDec_Vtbl;
 
 static inline AVIDecImpl *impl_from_TransformFilter( TransformFilter *iface )
 {
-    return CONTAINING_RECORD(iface, AVIDecImpl, tf.filter);
+    return CONTAINING_RECORD(iface, AVIDecImpl, tf);
 }
 
 static HRESULT WINAPI AVIDec_StartStreaming(TransformFilter* pTransformFilter)