diff --git a/ext/ffmpeg/gstffmpegcodecmap.c b/ext/ffmpeg/gstffmpegcodecmap.c
index f9e7d628bb..ee1b60e6e9 100644
--- a/ext/ffmpeg/gstffmpegcodecmap.c
+++ b/ext/ffmpeg/gstffmpegcodecmap.c
@@ -846,6 +846,12 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
       break;
     }
 
+    case CODEC_ID_WMAVOICE:
+    {
+      caps = gst_ff_aud_caps_new (context, codec_id, "audio/x-wms", NULL);
+      break;
+    }
+
     case CODEC_ID_MACE3:
     case CODEC_ID_MACE6:
     {
@@ -2868,6 +2874,9 @@ gst_ffmpeg_caps_to_codecid (const GstCaps * caps, AVCodecContext * context)
     }
     if (id != CODEC_ID_NONE)
       audio = TRUE;
+  } else if (!strcmp (mimetype, "audio/x-wms")) {
+    id = CODEC_ID_WMAVOICE;
+    audio = TRUE;
   } else if (!strcmp (mimetype, "audio/x-ac3")) {
     id = CODEC_ID_AC3;
     audio = TRUE;