diff --git a/eo2js-runtime/atom.js b/eo2js-runtime/atom.js
deleted file mode 100644
index 9ef8aa0..0000000
--- a/eo2js-runtime/atom.js
+++ /dev/null
@@ -1,19 +0,0 @@
-const object = require('../../../runtime/object')
-const {LAMBDA} = require('../../../runtime/attribute/specials');
-const ErFailure = require('../../../runtime/error/ErFailure');
-
-/**
- * ATOM.
- * @return {Object} - ATOM object
- */
-const atom = function() {
-  const obj = object('atom')
-  obj.assets[LAMBDA] = function(_) {
-    throw new ErFailure(
-      `Atom atom is not implemented yet`
-    )
-  }
-  return obj
-}
-
-module.exports = atom