diff --git a/src/PostTypes/WordpressPost.php b/src/PostTypes/WordpressPost.php
index 4905231..a8afa0b 100644
--- a/src/PostTypes/WordpressPost.php
+++ b/src/PostTypes/WordpressPost.php
@@ -835,7 +835,7 @@ protected function featuredImageAttachmentId() {
 
 	public function featuredImageUrl($image_size = 'thumbnail'){
 		$image = wp_get_attachment_image_src($this->featuredImageAttachmentId(), $image_size);
-		return $image[0];
+		return $image ? $image[0] : null;
 	}
 
 	public function featuredImage($size = 'thumbnail', $attrs = array()){