diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 27a9fc9e42..1f5e6050c8 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1507,7 +1507,6 @@ static int opt_adrift_threshold(void *optctx, const char *opt, const char *arg)
 }
 #endif
 
-static const char *const alt_bsf[]            = { "absf", "vbsf", NULL };
 static const char *const alt_channel_layout[] = { "ch_layout", NULL};
 static const char *const alt_codec[]          = { "c", "acodec", "vcodec", "scodec", "dcodec", NULL };
 static const char *const alt_filter[]         = { "af", "vf", NULL };