diff --git a/libavformat/demux.h b/libavformat/demux.h
index a008c3dba1..1f57e062f6 100644
--- a/libavformat/demux.h
+++ b/libavformat/demux.h
@@ -55,6 +55,12 @@ typedef struct FFStreamInfo {
     int     fps_last_dts_idx;
 } FFStreamInfo;
 
+/**
+ * Returned by demuxers to indicate that data was consumed but discarded
+ * (ignored streams or junk data). The framework will re-call the demuxer.
+ */
+#define FFERROR_REDO FFERRTAG('R','E','D','O')
+
 #define RELATIVE_TS_BASE (INT64_MAX - (1LL << 48))
 
 static av_always_inline int is_relative(int64_t ts)
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 44516578b0..5363c0c355 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -651,12 +651,6 @@ int ff_alloc_extradata(AVCodecParameters *par, int size);
  */
 int ff_copy_whiteblacklists(AVFormatContext *dst, const AVFormatContext *src);
 
-/**
- * Returned by demuxers to indicate that data was consumed but discarded
- * (ignored streams or junk data). The framework will re-call the demuxer.
- */
-#define FFERROR_REDO FFERRTAG('R','E','D','O')
-
 /*
  * A wrapper around AVFormatContext.io_close that should be used
  * instead of calling the pointer directly.
diff --git a/libavformat/lxfdec.c b/libavformat/lxfdec.c
index 2d0270d718..8003ae98b7 100644
--- a/libavformat/lxfdec.c
+++ b/libavformat/lxfdec.c
@@ -24,6 +24,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavcodec/bytestream.h"
 #include "avformat.h"
+#include "demux.h"
 #include "internal.h"
 
 #define LXF_MAX_PACKET_HEADER_SIZE 256
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index eac50040d7..1d54e8e917 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -29,6 +29,7 @@
 #include "libavutil/intreadwrite.h"
 #include "avformat.h"
 #include "avio_internal.h"
+#include "demux.h"
 #include "internal.h"
 
 #define SMACKER_PAL 0x01