diff --git a/libavcodec/mips/ac3dsp_mips.c b/libavcodec/mips/ac3dsp_mips.c
index e97a412922..cc49ba3888 100644
--- a/libavcodec/mips/ac3dsp_mips.c
+++ b/libavcodec/mips/ac3dsp_mips.c
@@ -54,11 +54,13 @@
  */
 
 #include <stddef.h>
+#include <string.h>
 
 #include "config.h"
 #include "libavcodec/ac3dsp.h"
 #include "libavcodec/ac3.h"
 #include "libavcodec/ac3tab.h"
+#include "libavutil/macros.h"
 #include "libavutil/mips/asmdefs.h"
 
 #if HAVE_INLINE_ASM