diff --git a/libavcodec/mpegvideo_xvmc.c b/libavcodec/mpegvideo_xvmc.c
index 1684abb860..b6283b0567 100644
--- a/libavcodec/mpegvideo_xvmc.c
+++ b/libavcodec/mpegvideo_xvmc.c
@@ -20,6 +20,7 @@
  */
 
 #include <limits.h>
+#include <X11/extensions/XvMC.h>
 
 #include "avcodec.h"
 #include "dsputil.h"