diff --git a/libmpcodecs/ad_vorbis.c b/libmpcodecs/ad_vorbis.c
index 749366d54c..c0c91f42e4 100644
--- a/libmpcodecs/ad_vorbis.c
+++ b/libmpcodecs/ad_vorbis.c
@@ -20,7 +20,6 @@ static ad_info_t info =
 
 LIBAD_EXTERN(vorbis)
 
-#include <math.h>
 #include <vorbis/codec.h>
 
 // This struct is also defined in demux_ogg.c => common header ?