diff --git a/src/__tests__/__snapshots__/atom1.spec.ts.snap b/src/__tests__/__snapshots__/atom1.spec.ts.snap
index 0892c4f..1123c62 100644
--- a/src/__tests__/__snapshots__/atom1.spec.ts.snap
+++ b/src/__tests__/__snapshots__/atom1.spec.ts.snap
@@ -54,5 +54,14 @@ exports[`atom 1.0 should generate a valid feed 1`] = `
         </contributor>
         <published>2013-07-10T23:00:00.000Z</published>
     </entry>
+    <entry>
+        <title type=\\"html\\"><![CDATA[Hello World 2]]></title>
+        <id>https://example.com/hello-world-2</id>
+        <link href=\\"https://example.com/hello-world-2\\">
+        </link>
+        <updated>2013-07-13T22:00:00.000Z</updated>
+        <summary type=\\"html\\"><![CDATA[This is another article about Hello World.]]></summary>
+        <published>2013-07-10T23:00:00.000Z</published>
+    </entry>
 </feed>"
 `;
diff --git a/src/__tests__/__snapshots__/json.spec.ts.snap b/src/__tests__/__snapshots__/json.spec.ts.snap
index b6f5327..68c70fc 100644
--- a/src/__tests__/__snapshots__/json.spec.ts.snap
+++ b/src/__tests__/__snapshots__/json.spec.ts.snap
@@ -37,6 +37,14 @@ exports[`json 1 should generate a valid feed 1`] = `
                 \\"about\\": \\"just a second item extension example\\",
                 \\"dummy1\\": \\"example\\"
             }
+        },
+        {
+            \\"id\\": \\"https://example.com/hello-world-2\\",
+            \\"url\\": \\"https://example.com/hello-world-2\\",
+            \\"title\\": \\"Hello World 2\\",
+            \\"summary\\": \\"This is another article about Hello World.\\",
+            \\"date_modified\\": \\"2013-07-13T22:00:00.000Z\\",
+            \\"date_published\\": \\"2013-07-10T23:00:00.000Z\\"
         }
     ]
 }"
diff --git a/src/__tests__/__snapshots__/rss2.spec.ts.snap b/src/__tests__/__snapshots__/rss2.spec.ts.snap
index c7af68f..5142341 100644
--- a/src/__tests__/__snapshots__/rss2.spec.ts.snap
+++ b/src/__tests__/__snapshots__/rss2.spec.ts.snap
@@ -31,6 +31,13 @@ exports[`rss 2.0 should generate a valid feed 1`] = `
             <enclosure url=\\"https://example.com/hello-world.jpg\\">
             </enclosure>
         </item>
+        <item>
+            <title><![CDATA[Hello World 2]]></title>
+            <link>https://example.com/hello-world-2</link>
+            <guid isPermaLink=\\"false\\">58f618d7a56f2f745291a473</guid>
+            <pubDate>Sat, 13 Jul 2013 22:00:00 GMT</pubDate>
+            <description><![CDATA[This is another article about Hello World.]]></description>
+        </item>
     </channel>
 </rss>"
 `;
diff --git a/src/__tests__/setup.ts b/src/__tests__/setup.ts
index 575c53a..cae002a 100644
--- a/src/__tests__/setup.ts
+++ b/src/__tests__/setup.ts
@@ -80,6 +80,17 @@ sampleFeed.addItem({
   published
 });
 
+sampleFeed.addItem({
+  title: "Hello World 2",
+  id: "https://example.com/hello-world-2",
+  link: "https://example.com/hello-world-2",
+  guid: "58f618d7a56f2f745291a473",
+  guidIsPermaLink: false,
+  description: "This is another article about Hello World.",
+  date: new Date("Sat, 13 Jul 2013 22:00:00 GMT"),
+  published
+});
+
 sampleFeed.addExtension({
   name: "_example_extension",
   objects: {
diff --git a/src/types/index.ts b/src/types/index.ts
index 0363090..62281fd 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -35,7 +35,7 @@ interface FeedOptions {
   language?: string;
 
   feed?: string;
-  feedLinks: any;
+  feedLinks?: any;
   hub?: string;
 
   author?: Author;
@@ -56,5 +56,5 @@ interface Feed {
 
 interface Extension {
   name: string;
-  objects: string;
+  objects: { [key: string]: string };
 }