diff --git a/dlls/qcap/enummedia.c b/dlls/qcap/enummedia.c
index a82a94c9bf7..87a6e2d66dc 100644
--- a/dlls/qcap/enummedia.c
+++ b/dlls/qcap/enummedia.c
@@ -37,7 +37,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(qcap);
 
 HRESULT CopyMediaType(AM_MEDIA_TYPE * pDest, const AM_MEDIA_TYPE *pSrc)
 {
-    memcpy(pDest, pSrc, sizeof(AM_MEDIA_TYPE));
+    *pDest = *pSrc;
     if (!pSrc->pbFormat) return S_OK;
     if (!(pDest->pbFormat = CoTaskMemAlloc(pSrc->cbFormat)))
         return E_OUTOFMEMORY;
diff --git a/dlls/qcap/pin.c b/dlls/qcap/pin.c
index 28d2f1a590d..44ce5e89c91 100644
--- a/dlls/qcap/pin.c
+++ b/dlls/qcap/pin.c
@@ -242,7 +242,7 @@ HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, const ALLOCATOR_PROPERTIES * p
     pPinImpl->pConnectSpecific = OutputPin_ConnectSpecific;
     if (props)
     {
-        memcpy(&pPinImpl->allocProps, props, sizeof(pPinImpl->allocProps));
+        pPinImpl->allocProps = *props;
         if (pPinImpl->allocProps.cbAlign == 0)
             pPinImpl->allocProps.cbAlign = 1;
     }
diff --git a/dlls/qcap/v4l.c b/dlls/qcap/v4l.c
index 4ad2d9c2fd2..d4f9417a1b0 100644
--- a/dlls/qcap/v4l.c
+++ b/dlls/qcap/v4l.c
@@ -293,9 +293,9 @@ HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
         CoTaskMemFree(mT[0]);
         return E_OUTOFMEMORY;
     }
-    memcpy(&mT[0]->majortype, &MEDIATYPE_Video, sizeof(GUID));
-    memcpy(&mT[0]->subtype, &MEDIASUBTYPE_RGB24, sizeof(GUID));
-    memcpy(&mT[0]->formattype, &FORMAT_VideoInfo, sizeof(GUID));
+    mT[0]->majortype = MEDIATYPE_Video;
+    mT[0]->subtype = MEDIASUBTYPE_RGB24;
+    mT[0]->formattype = FORMAT_VideoInfo;
     mT[0]->bFixedSizeSamples = TRUE;
     mT[0]->bTemporalCompression = FALSE;
     mT[0]->pUnk = NULL;