diff --git a/src/node_core_av.js b/src/node_core_av.js
index 300a0739..3ecb4e7f 100644
--- a/src/node_core_av.js
+++ b/src/node_core_av.js
@@ -51,8 +51,8 @@ const VIDEO_CODEC_NAME = [
   'H264',
   '',
   '',
-  'VP8',
-  'VP9',
+  '',
+  '',
   'H265',
   'AV1',
 ];