diff --git a/cnames_active.js b/cnames_active.js
index 29498ec5..0b776380 100644
--- a/cnames_active.js
+++ b/cnames_active.js
@@ -1574,6 +1574,7 @@ var cnames_active = {
   "polygon-clipping": "mfogel.github.io/polygon-clipping",
   "polythene": "arthurclemens.github.io/Polythene", // noCF? (don´t add this in a new PR)
   "pomidorus": "tatyshev.github.io/pomidorus",
+  "pong-zh": "xiaozhu2021.github.io/javascript-pong"
   "popcorn-api": "nirewen.github.io/popcorn-api",
   "popper": "fezvrasta.github.io/popper.js",
   "portafolioacadeller": "acadeller.github.io/portafolioacadeller",