1 files changed, 1 insertions, 1 deletions
diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index b0117f0b6d..ba9c934b7a 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -2872,7 +2872,7 @@ static int read_next_block_into_queue(demuxer_t *demuxer)
         if (mkv_d->cluster_end != EBML_UINT_INVALID)
             mkv_d->cluster_end += stream_tell(s);
     }
-    assert(0); // unreachable
+    MP_UNREACHABLE();
 
 add_block:
     index_block(demuxer, &block);