diff --git a/libavformat/g723_1.c b/libavformat/g723_1.c
index 5ffd7c7619..19441a1b19 100644
--- a/libavformat/g723_1.c
+++ b/libavformat/g723_1.c
@@ -78,6 +78,6 @@ AVInputFormat ff_g723_1_demuxer = {
     NULL,
     g723_1_init,
     g723_1_read_packet,
-    .extensions = "tco",
+    .extensions = "tco,rco",
     .flags = AVFMT_GENERIC_INDEX
 };