diff --git a/fftools/ffmpeg_demux.c b/fftools/ffmpeg_demux.c
index 95af31e9ef..5d07b7153d 100644
--- a/fftools/ffmpeg_demux.c
+++ b/fftools/ffmpeg_demux.c
@@ -1223,8 +1223,7 @@ static int ist_add(const OptionsContext *o, Demuxer *d, AVStream *st)
     case AVMEDIA_TYPE_ATTACHMENT:
     case AVMEDIA_TYPE_UNKNOWN:
         break;
-    default:
-        abort();
+    default: av_assert0(0);
     }
 
     ist->par = avcodec_parameters_alloc();