diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index bbc2be0ba1..3a2f0e0916 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -175,8 +175,6 @@ static void get_tag(AVFormatContext *s, const char *key, int type, int len)
         av_log(s, AV_LOG_DEBUG, "Unsupported value type %d in tag %s.\n", type, key);
         return;
     }
-    if (!strncmp(key, "WM/", 3))
-        key += 3;
     av_metadata_set2(&s->metadata, key, value, 0);
     av_freep(&value);
 }