diff --git a/src/frontends/qt4/GuiClipboard.cpp b/src/frontends/qt4/GuiClipboard.cpp
index 803de60043..085367a506 100644
--- a/src/frontends/qt4/GuiClipboard.cpp
+++ b/src/frontends/qt4/GuiClipboard.cpp
@@ -43,6 +43,9 @@
 
 #ifdef Q_WS_WIN
 #include <QWindowsMime>
+#ifdef Q_CYGWIN_WIN
+#include <wtypes.h>
+#endif
 #include <objidl.h>
 #endif // Q_WS_WIN
 
@@ -153,11 +156,11 @@ QVariant QWindowsMimeMetafile::convertToMime(
 		
 		if (pDataObj->GetData(&formatetc, &s) == S_OK) {
 			if (s.tymed == TYMED_ENHMF) {
-				dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, NULL, NULL);
+				dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 				data.resize(dataSize);
 				dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize, (LPBYTE)data.data());
 			} else if (s.tymed == TYMED_MFPICT) {
-				dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, NULL, NULL);
+				dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 				data.resize(dataSize);
 				dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize, (LPBYTE)data.data());
 			}