diff --git a/package.json b/package.json
index 164b30d..376bd89 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,9 @@
   "version": "1.1.0",
   "description": "A mathematical parser for latex in math mode. We mean by mathematical that, arithmetic operations is considered for example if you pass \"1+2\", the result would by a (add node \"+\") with two children nodes of type number.",
   "main": "./lib/index.js",
+  "files": [
+	"lib"
+  ],
   "repository": {
     "type": "git",
     "url": "git+https://github.com/scicave/math-latex-parser.git"