diff --git a/libavcodec/msmpeg4.c b/libavcodec/msmpeg4.c
index a2c4c57728..e327bf36a7 100644
--- a/libavcodec/msmpeg4.c
+++ b/libavcodec/msmpeg4.c
@@ -27,13 +27,17 @@
  * MSMPEG4 backend for encoder and decoder
  */
 
+#include "config.h"
+
 #include "libavutil/thread.h"
+#if ARCH_X86
+#include "libavutil/x86/asm.h"
+#endif
 
 #include "avcodec.h"
 #include "idctdsp.h"
 #include "mpegvideo.h"
 #include "msmpeg4.h"
-#include "libavutil/x86/asm.h"
 #include "mpeg4videodata.h"
 #include "msmpeg4data.h"
 #include "msmpeg4_vc1_data.h"