diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index dc7e49abc4..c65e0a2723 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -178,7 +178,7 @@ static void handle_stream_probing(AVStream *st)
 {
     if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
         FFStream *const sti = ffstream(st);
-        sti->request_probe = AVPROBE_SCORE_EXTENSION;
+        sti->request_probe = AVPROBE_SCORE_EXTENSION + 1;
         sti->probe_packets = FFMIN(sti->probe_packets, 32);
     }
 }