diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index 407c5c1794..a0fa0bf1bc 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -25,6 +25,7 @@
 //#define DEBUG
 #include "avcodec.h"
 #include "mpegaudio.h"
+#include "dsputil.h"
 
 /*
  * TODO: