diff --git a/lib/jsdoc/augment.js b/lib/jsdoc/augment.js
index 98851faf..08307ea6 100644
--- a/lib/jsdoc/augment.js
+++ b/lib/jsdoc/augment.js
@@ -14,7 +14,7 @@ function mapDependencies(index, propertyName) {
     var dependencies = {};
     var doc;
     var doclets;
-    var kinds = ['class', 'external', 'mixin'];
+    var kinds = ['class', 'external', 'interface', 'mixin'];
     var len = 0;
 
     Object.keys(index).forEach(function(indexName) {
@@ -175,7 +175,7 @@ function getInheritedAdditions(doclets, docs, documented) {
         doc = doclets[i];
         parents = doc.augments;
 
-        if (parents && doc.kind === 'class') {
+        if ( parents && (doc.kind === 'class' || doc.kind === 'interface') ) {
             // reset the lookup table of added doclet indexes by longname
             additionIndexes = {};
 
diff --git a/test/specs/tags/augmentstag.js b/test/specs/tags/augmentstag.js
index 295d4f5c..19be3101 100644
--- a/test/specs/tags/augmentstag.js
+++ b/test/specs/tags/augmentstag.js
@@ -6,6 +6,7 @@
     var docSet3 = jasmine.getDocSetFromFile('test/fixtures/augmentstag3.js');
     var docSet4 = jasmine.getDocSetFromFile('test/fixtures/augmentstag4.js');
     var docSet5 = jasmine.getDocSetFromFile('test/fixtures/augmentstag5.js');
+    var docSet6 = jasmine.getDocSetFromFile('test/fixtures/augmentstag6.js');
 
     it('When a symbol has an @augments tag, the doclet has a augments property that includes that value.', function() {
         var bar = docSet.getByLongname('Bar')[0];
@@ -163,4 +164,12 @@
         expect(classCommonMethod.length).toBe(1);
         expect(classCommonMethod[0].description).toBe(base1CommonMethod.description);
     });
+
+    it('Interfaces can augment other interfaces', function() {
+        var connectionOpen = docSet6.getByLongname('IConnection#open')[0];
+        var closableConnectionOpen = docSet6.getByLongname('IClosableConnection#open')[0];
+
+        expect(closableConnectionOpen).toBeDefined();
+        expect(closableConnectionOpen.description).toBe(connectionOpen.description);
+    });
 });