diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 1fbe79bf5f..969ab28875 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -761,7 +761,7 @@ static int ff_asf_get_packet(AVFormatContext *s, AVIOContext *pb)
         c= avio_r8(pb);
         d= avio_r8(pb);
         rsize+=3;
-    }else{
+    } else if (!pb->eof_reached) {
         avio_seek(pb, -1, SEEK_CUR); //FIXME
     }