diff --git a/gst-libs/gst/pbutils/descriptions.c b/gst-libs/gst/pbutils/descriptions.c
index f17fc7aadc..ec02fb3a3a 100644
--- a/gst-libs/gst/pbutils/descriptions.c
+++ b/gst-libs/gst/pbutils/descriptions.c
@@ -74,6 +74,7 @@ static const FormatInfo formats[] = {
   {"video/x-fli", "FLI/FLC/FLX Animation", FLAG_CONTAINER},
   {"video/x-flv", "Flash", FLAG_CONTAINER},
   {"video/x-matroska", "Matroska", FLAG_CONTAINER},
+  {"video/webm", "WebM", FLAG_CONTAINER},
   {"video/x-ms-asf", "Advanced Streaming Format (ASF)", FLAG_CONTAINER},
   {"video/x-msvideo", "AVI", FLAG_CONTAINER},
   {"video/x-quicktime", "Quicktime", FLAG_CONTAINER},
@@ -189,6 +190,7 @@ static const FormatInfo formats[] = {
   {"video/x-vp6", "On2 VP6", 0},
   {"video/x-vp6-flash", "On2 VP6/Flash", 0},
   {"video/x-vp7", "On2 VP7", 0},
+  {"video/x-vp8", "VP8", 0},
   {"video/x-xvid", "XVID MPEG-4", 0},
   {"video/x-zlib", "Lossless zlib video", 0},
   {"video/x-zmbv", "Zip Motion Block video", 0},