diff --git a/libavformat/internal.h b/libavformat/internal.h
index d77e36399b..2edc3306a7 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -157,6 +157,4 @@ void ff_sdp_write_media(char *buff, int size, AVCodecContext *c,
 int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
                      AVFormatContext *src);
 
-#define SPACE_CHARS " \t\r\n"
-
 #endif /* AVFORMAT_INTERNAL_H */
diff --git a/libavformat/rtpdec.h b/libavformat/rtpdec.h
index 8a62034737..439fcc2b4d 100644
--- a/libavformat/rtpdec.h
+++ b/libavformat/rtpdec.h
@@ -26,6 +26,8 @@
 #include "avformat.h"
 #include "rtp.h"
 
+#define SPACE_CHARS " \t\r\n"
+
 typedef struct PayloadContext PayloadContext;
 typedef struct RTPDynamicProtocolHandler_s RTPDynamicProtocolHandler;
 
diff --git a/libavformat/rtpdec_mpeg4.c b/libavformat/rtpdec_mpeg4.c
index dec45b4ee8..cb22b32e11 100644
--- a/libavformat/rtpdec_mpeg4.c
+++ b/libavformat/rtpdec_mpeg4.c
@@ -28,7 +28,6 @@
  */
 
 #include "rtpdec_mpeg4.h"
-#include "internal.h"
 #include "libavutil/avstring.h"
 #include "libavcodec/get_bits.h"
 #include <strings.h>