diff --git a/CHANGELOG.md b/CHANGELOG.md
index f601df95d..e9b1dd49b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## 2.5.0 / 2020-03-08
 
+- Optionally add `Symbol.iterator` support if available in runtime environment. Closes [#124](https://github.com/kofrasa/mingo/issues/124)
 - Allow matching with nested fields in $lookup. Fixes [#123](https://github.com/kofrasa/mingo/issues/123)
 - Add $round operator and support 'place' argument for `$trunc`. Fixes [#121](https://github.com/kofrasa/mingo/issues/121)
 - Support new array fields. Fixes [#119](https://github.com/kofrasa/mingo/issues/119)
diff --git a/dist/mingo.js b/dist/mingo.js
index 93fb6f3bf..955476c31 100644
--- a/dist/mingo.js
+++ b/dist/mingo.js
@@ -1536,11 +1536,6 @@ var Iterator = function () {
   }
 
   createClass(Iterator, [{
-    key: Symbol.iterator,
-    value: function value() {
-      return this;
-    }
-  }, {
     key: '_validate',
     value: function _validate() {
       if (this.__first) throw new Error("Cannot add iteratee/transform after `first()`");
@@ -1718,6 +1713,12 @@ var Iterator = function () {
   return Iterator;
 }();
 
+if (typeof Symbol === 'function') {
+  Iterator.prototype[Symbol.iterator] = function () {
+    return this;
+  };
+}
+
 /**
  * Categorizes incoming documents into groups, called buckets, based on a specified expression and bucket boundaries.
  * https://docs.mongodb.com/manual/reference/operator/aggregation/bucket/
@@ -2774,22 +2775,21 @@ var Cursor = function () {
     value: function forEach(callback) {
       this._fetch().each(callback);
     }
-
-    /**
-     * Applies an [ES2015 Iteration protocol][] compatible implementation
-     * [ES2015 Iteration protocol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
-     * @returns {Object}
-     */
-
-  }, {
-    key: Symbol.iterator,
-    value: function value() {
-      return this._fetch();
-    }
   }]);
   return Cursor;
 }();
 
+if (typeof Symbol === 'function') {
+  /**
+   * Applies an [ES2015 Iteration protocol][] compatible implementation
+   * [ES2015 Iteration protocol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
+   * @returns {Object}
+   */
+  Cursor.prototype[Symbol.iterator] = function () {
+    return this._fetch();
+  };
+}
+
 /**
  * Query object to test collection elements with
  * @param criteria the pass criteria for the query
diff --git a/lib/cursor.js b/lib/cursor.js
index 4ed5d8164..42c27728c 100644
--- a/lib/cursor.js
+++ b/lib/cursor.js
@@ -142,14 +142,15 @@ export class Cursor {
   forEach (callback) {
     this._fetch().each(callback)
   }
+}
 
+if (typeof Symbol === 'function') {
   /**
    * Applies an [ES2015 Iteration protocol][] compatible implementation
    * [ES2015 Iteration protocol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
    * @returns {Object}
    */
-  [Symbol.iterator] () {
+  Cursor.prototype[Symbol.iterator] = function () {
     return this._fetch()
   }
-}
-
+}
\ No newline at end of file
diff --git a/lib/lazy.js b/lib/lazy.js
index 00b758146..df9180ed8 100644
--- a/lib/lazy.js
+++ b/lib/lazy.js
@@ -142,10 +142,6 @@ class Iterator {
     this.next = baseIterator(source, this.__iteratees, this.__buf)
   }
 
-  [Symbol.iterator] () {
-    return this
-  }
-
   _validate () {
     if (this.__first) throw new Error("Cannot add iteratee/transform after `first()`")
   }
@@ -284,3 +280,9 @@ class Iterator {
     return this.reduce((acc,n) => ++acc, 0)
   }
 }
+
+if (typeof Symbol === 'function') {
+  Iterator.prototype[Symbol.iterator] = function() {
+    return this
+  }
+}
\ No newline at end of file
diff --git a/test/cursor_tests.js b/test/cursor_tests.js
index ac1aad690..294304a4b 100644
--- a/test/cursor_tests.js
+++ b/test/cursor_tests.js
@@ -1,5 +1,4 @@
 var test = require('tape')
-var Backbone = require('backbone')
 var mingo = require('../dist/mingo')
 var samples = require('./support')
 var _ = mingo._internal()