diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index ab6a548b82..6274a759c4 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -268,7 +268,7 @@ void av_register_all(void)
     REGISTER_DEMUXER (SUBVIEWER,        subviewer);
     REGISTER_MUXDEMUX(SWF,              swf);
     REGISTER_DEMUXER (TAK,              tak);
-    REGISTER_MUXER   (TEE, tee);
+    REGISTER_MUXER   (TEE,              tee);
     REGISTER_DEMUXER (TEDCAPTIONS,      tedcaptions);
     REGISTER_MUXER   (TG2,              tg2);
     REGISTER_MUXER   (TGP,              tgp);