diff --git a/dlls/quartz/filtergraph.c b/dlls/quartz/filtergraph.c
index bbf22e613bb..1dcff3e24b5 100644
--- a/dlls/quartz/filtergraph.c
+++ b/dlls/quartz/filtergraph.c
@@ -1646,7 +1646,8 @@ static HRESULT WINAPI MediaSeeking_ConvertTimeFormat(IMediaSeeking *iface,
 						     const GUID *pSourceFormat) {
     ICOM_THIS_MULTI(IFilterGraphImpl, IMediaSeeking_vtbl, iface);
 
-    TRACE("(%p/%p)->(%p, %p, %lld, %p): stub !!!\n", This, iface, pTarget, pTargetFormat, Source, pSourceFormat);
+    TRACE("(%p/%p)->(%p, %p, 0x%s, %p): stub !!!\n", This, iface, pTarget,
+        pTargetFormat, wine_dbgstr_longlong(Source), pSourceFormat);
 
     return S_OK;
 }
@@ -4067,7 +4068,7 @@ static HRESULT WINAPI MediaFilter_Pause(IMediaFilter *iface)
 
 static HRESULT WINAPI MediaFilter_Run(IMediaFilter *iface, REFERENCE_TIME tStart)
 {
-    FIXME("(%lld): stub\n", tStart);
+    FIXME("(0x%s): stub\n", wine_dbgstr_longlong(tStart));
 
     return E_NOTIMPL;
 }
diff --git a/dlls/quartz/systemclock.c b/dlls/quartz/systemclock.c
index f4391a41137..6e2502eedff 100644
--- a/dlls/quartz/systemclock.c
+++ b/dlls/quartz/systemclock.c
@@ -260,7 +260,8 @@ static HRESULT WINAPI SystemClockImpl_AdviseTime(IReferenceClock* iface, REFEREN
   SystemClockImpl *This = (SystemClockImpl *)iface;
   SystemClockAdviseEntry* pEntry = NULL;
 
-  TRACE("(%p, %lld, %lld, %ld, %p)\n", This, rtBaseTime, rtStreamTime, hEvent, pdwAdviseCookie);
+  TRACE("(%p, 0x%s, 0x%s, %ld, %p)\n", This, wine_dbgstr_longlong(rtBaseTime),
+      wine_dbgstr_longlong(rtStreamTime), hEvent, pdwAdviseCookie);
 
   if ((HEVENT) 0 == hEvent) {
     return E_INVALIDARG;
@@ -294,7 +295,8 @@ static HRESULT WINAPI SystemClockImpl_AdvisePeriodic(IReferenceClock* iface, REF
   SystemClockImpl *This = (SystemClockImpl *)iface;
   SystemClockAdviseEntry* pEntry = NULL;
 
-  TRACE("(%p, %lld, %lld, %ld, %p)\n", This, rtStartTime, rtPeriodTime, hSemaphore, pdwAdviseCookie);
+  TRACE("(%p, 0x%s, 0x%s, %ld, %p)\n", This, wine_dbgstr_longlong(rtStartTime),
+      wine_dbgstr_longlong(rtPeriodTime), hSemaphore, pdwAdviseCookie);
 
   if ((HSEMAPHORE) 0 == hSemaphore) {
     return E_INVALIDARG;