1 files changed, 5 insertions, 1 deletions
diff --git a/libavcodec/dxva2_h264.c b/libavcodec/dxva2_h264.c
index a4a88ce61d..8f7c4a7eb0 100644
--- a/libavcodec/dxva2_h264.c
+++ b/libavcodec/dxva2_h264.c
@@ -20,11 +20,15 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "dxva2_internal.h"
 #include "h264.h"
 #include "h264data.h"
 #include "mpegutils.h"
 
+// The headers above may include w32threads.h, which uses the original
+// _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
+// potentially newer version.
+#include "dxva2_internal.h"
+
 struct dxva2_picture_context {
     DXVA_PicParams_H264   pp;
     DXVA_Qmatrix_H264     qm;