diff --git a/libavcodec/libdirac.h b/libavcodec/libdirac.h
index 528e81195b..31cd5738d7 100644
--- a/libavcodec/libdirac.h
+++ b/libavcodec/libdirac.h
@@ -26,6 +26,8 @@
 #ifndef FFMPEG_LIBDIRAC_H
 #define FFMPEG_LIBDIRAC_H
 
+#include "config.h"
+
 #ifdef CONFIG_LIBDIRAC
 
 #include "avcodec.h"