diff --git a/lib/utils/objects.js b/lib/utils/objects.js
deleted file mode 100644
index 3502732..0000000
--- a/lib/utils/objects.js
+++ /dev/null
@@ -1,40 +0,0 @@
-"use strict";
-
-/* Object utilities. */
-let objects = {
-  values: function(object) {
-    let result = [];
-
-    for (let key in object) {
-      if (object.hasOwnProperty(key)) {
-        result.push(object[key]);
-      }
-    }
-
-    return result;
-  },
-
-  clone: function(object) {
-    let result = {};
-
-    for (let key in object) {
-      if (object.hasOwnProperty(key)) {
-        result[key] = object[key];
-      }
-    }
-
-    return result;
-  },
-
-  defaults: function(object, defaults) {
-    for (let key in defaults) {
-      if (defaults.hasOwnProperty(key)) {
-        if (!(key in object)) {
-          object[key] = defaults[key];
-        }
-      }
-    }
-  }
-};
-
-module.exports = objects;
diff --git a/package.json b/package.json
index 484cd61..97195e8 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,6 @@
     "lib/grammar-error.js",
     "lib/parser.js",
     "lib/peg.js",
-    "lib/utils/objects.js",
     "package.json"
   ],
   "main": "lib/peg",