diff --git a/rhino_modules/jsdoc/augment.js b/rhino_modules/jsdoc/augment.js
index bcbd470a..30a9ec6a 100644
--- a/rhino_modules/jsdoc/augment.js
+++ b/rhino_modules/jsdoc/augment.js
@@ -4,18 +4,17 @@
     exports.addInherited = function(docs) {
         var dependencies = mapDependencies(docs.index);
         var sorted = sort(dependencies);
-        var additions = [];
         sorted.forEach(function(name) {
             var doclets = docs.index[name];
-            Array.prototype.push.apply(additions, getAdditions(doclets, docs));
-        });
-        additions.forEach(function(doc) {
-            var name = doc.longname;
-            if (!(docs.index.hasOwnProperty(name))) {
-                docs.index[name] = [];
-            }
-            docs.index[name].push(doc);
-            docs.push(doc);
+            var additions = getAdditions(doclets, docs);
+            additions.forEach(function(doc) {
+                var name = doc.longname;
+                if (!(docs.index.hasOwnProperty(name))) {
+                    docs.index[name] = [];
+                }
+                docs.index[name].push(doc);
+                docs.push(doc);
+            });
         });
     }
 
diff --git a/test/README.md b/test/README.md
index a321ff28..dd5406b3 100644
--- a/test/README.md
+++ b/test/README.md
@@ -1,3 +1,3 @@
 From the project root, run the following command in the terminal:
 
-    java -jar lib/js.jar jsdoc.js -T
+    java -jar lib/js.jar -modules rhino_modules -modules node_modules jsdoc.js -T
diff --git a/test/cases/augmentstag.js b/test/cases/augmentstag.js
index 18a54175..15e6c514 100644
--- a/test/cases/augmentstag.js
+++ b/test/cases/augmentstag.js
@@ -25,7 +25,7 @@ Foo.prototype.method2 = function() {};
 
 /**
  * @constructor
- *  @extends Foo
+ * @extends Foo
  */
 function Bar() {
     /** Thrid prop **/
@@ -37,3 +37,17 @@ function Bar() {
  */
 Bar.prototype.method2 = function() {};
 
+/**
+ * @constructor
+ * @extends Bar
+ */
+function Baz() {
+    /** Override prop1 */
+    this.prop1 = "new";
+}
+
+/**
+ * Third grandchild method.
+ */
+Baz.prototype.method3 = function() {};
+
diff --git a/test/t/cases/augmentstag.js b/test/t/cases/augmentstag.js
index 8361fca6..04c4661f 100644
--- a/test/t/cases/augmentstag.js
+++ b/test/t/cases/augmentstag.js
@@ -12,6 +12,12 @@
         barProp3 = docSet.getByLongname('Bar#prop3')[0],
         barMethod1 = docSet.getByLongname('Bar#method1')[0],
         barMethod2 = docSet.getByLongname('Bar#method2')[0];
+        bazProp1 = docSet.getByLongname('Baz#prop1')[0],
+        bazProp2 = docSet.getByLongname('Baz#prop2')[0],
+        bazProp3 = docSet.getByLongname('Baz#prop3')[0],
+        bazMethod1 = docSet.getByLongname('Baz#method1')[0],
+        bazMethod2 = docSet.getByLongname('Baz#method2')[0];
+        bazMethod3 = docSet.getByLongname('Baz#method3')[0];
     
     test('When a symbol has an @augments tag, the doclet has a augments property that includes that value.', function() {
         assert.equal(typeof bar.augments, 'object');
@@ -47,5 +53,15 @@
         assert.equal(barMethod2.description, "Second child method.");
     });
 
+    test('When an object is extended, it inherits properties set on grandparent prototype', function() {
+        assert.equal(fooProp1.memberof, "Foo");
+        assert.equal(barProp1.memberof, "Bar");
+        assert.equal(bazProp1.memberof, "Baz");
+        assert.equal(bazProp1.description, "Override prop1");
+        assert.equal(bazMethod1.memberof, "Baz");
+        assert.equal(bazMethod2.memberof, "Baz");
+        assert.equal(bazMethod3.memberof, "Baz");
+    });
 
-})();
\ No newline at end of file
+
+})();