diff --git a/package.json b/package.json
index f935ec2f..1910d25c 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "katex.js",
     "cli.js",
     "src/",
+    "contrib/",
     "dist/"
   ],
   "license": "MIT",