diff --git a/include/codecs.h b/include/codecs.h
index 315eaf15eddb2b1dc9e3117dd31a1dd6dd8e18f0..1e4117ce738cc65abad908db2062cc48db920654 100644
--- a/include/codecs.h
+++ b/include/codecs.h
@@ -243,6 +243,7 @@ typedef struct
 #define WAVE_FORMAT_VORB_2PLUS          0x6770
 #define WAVE_FORMAT_VORB_3              0x6751
 #define WAVE_FORMAT_VORB_3PLUS          0x6771
+#define WAVE_FORMAT_SPEEX               0xa109 /* Speex audio */
 
 
 #if !defined(WAVE_FORMAT_EXTENSIBLE)
@@ -322,6 +323,7 @@ wave_format_tag_to_fourcc[] =
     { WAVE_FORMAT_VORB_2PLUS, VLC_FOURCC( 'v', 'o', '2', '+' ), "Vorbis 2+ Audio" },
     { WAVE_FORMAT_VORB_3,     VLC_FOURCC( 'v', 'o', 'r', '3' ), "Vorbis 3 Audio" },
     { WAVE_FORMAT_VORB_3PLUS, VLC_FOURCC( 'v', 'o', '3', '+' ), "Vorbis 3+ Audio" },
+    { WAVE_FORMAT_SPEEX,      VLC_FOURCC( 's', 'p', 'x', ' ' ), "Speex Audio" },
     { WAVE_FORMAT_UNKNOWN,    VLC_FOURCC( 'u', 'n', 'd', 'f' ), "Unknown" }
 };