diff --git a/dlls/quartz/parser.c b/dlls/quartz/parser.c
index bc6b34dcb23..a2ff407947f 100644
--- a/dlls/quartz/parser.c
+++ b/dlls/quartz/parser.c
@@ -68,7 +68,7 @@ static IPin* WINAPI Parser_GetPin(BaseFilter *iface, int pos)
 {
     ParserImpl *This = impl_from_BaseFilter(iface);
 
-    TRACE("Asking for pos %x\n", pos);
+    TRACE("%p->(%x)\n", This, pos);
 
     /* Input pin also has a pin, hence the > and not >= */
     if (pos > This->cStreams || pos < 0)
@@ -82,6 +82,8 @@ static LONG WINAPI Parser_GetPinCount(BaseFilter *iface)
 {
     ParserImpl *This = impl_from_BaseFilter(iface);
 
+    TRACE("%p->()\n", This);
+
     return This->cStreams;
 }
 
@@ -222,7 +224,7 @@ HRESULT WINAPI Parser_GetClassID(IBaseFilter * iface, CLSID * pClsid)
 {
     ParserImpl *This = impl_from_IBaseFilter(iface);
 
-    TRACE("(%p)\n", pClsid);
+    TRACE("%p->(%p)\n", This, pClsid);
 
     *pClsid = This->filter.clsid;
 
@@ -237,7 +239,7 @@ HRESULT WINAPI Parser_Stop(IBaseFilter * iface)
     PullPin *pin = impl_PullPin_from_IPin(This->ppPins[0]);
     ULONG i;
 
-    TRACE("()\n");
+    TRACE("%p->()\n", This);
 
     EnterCriticalSection(&pin->thread_lock);
 
@@ -275,7 +277,7 @@ HRESULT WINAPI Parser_Pause(IBaseFilter * iface)
     ParserImpl *This = impl_from_IBaseFilter(iface);
     PullPin *pin = impl_PullPin_from_IPin(This->ppPins[0]);
 
-    TRACE("()\n");
+    TRACE("%p->()\n", This);
 
     EnterCriticalSection(&pin->thread_lock);
     EnterCriticalSection(&This->filter.csFilter);
@@ -311,7 +313,7 @@ HRESULT WINAPI Parser_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 
     ULONG i;
 
-    TRACE("(%s)\n", wine_dbgstr_longlong(tStart));
+    TRACE("%p->(%s)\n", This, wine_dbgstr_longlong(tStart));
 
     EnterCriticalSection(&pin->thread_lock);
     EnterCriticalSection(&This->filter.csFilter);
@@ -357,7 +359,7 @@ HRESULT WINAPI Parser_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FI
     PullPin *pin = impl_PullPin_from_IPin(This->ppPins[0]);
     HRESULT hr = S_OK;
 
-    TRACE("(%d, %p)\n", dwMilliSecsTimeout, pState);
+    TRACE("%p->(%d, %p)\n", This, dwMilliSecsTimeout, pState);
 
     EnterCriticalSection(&pin->thread_lock);
     EnterCriticalSection(&This->filter.csFilter);
@@ -378,7 +380,7 @@ HRESULT WINAPI Parser_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock
     ParserImpl *This = impl_from_IBaseFilter(iface);
     PullPin *pin = impl_PullPin_from_IPin(This->ppPins[0]);
 
-    TRACE("(%p)\n", pClock);
+    TRACE("%p->(%p)\n", This, pClock);
 
     EnterCriticalSection(&pin->thread_lock);
     BaseFilterImpl_SetSyncSource(iface,pClock);
@@ -401,7 +403,8 @@ HRESULT WINAPI Parser_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 
 HRESULT WINAPI Parser_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 {
-    FIXME("(%p)->(%s,%p)\n", iface, debugstr_w(Id), ppPin);
+    ParserImpl *This = impl_from_IBaseFilter(iface);
+    FIXME("(%p)->(%s,%p)\n", This, debugstr_w(Id), ppPin);
 
     /* FIXME: critical section */