diff --git a/code/plugins/system/koowa/document/default.php b/code/plugins/system/koowa/document/default.php
index <HASH>..<HASH> 100644
--- a/code/plugins/system/koowa/document/default.php
+++ b/code/plugins/system/koowa/document/default.php
@@ -29,6 +29,21 @@ class KDocumentDefault extends KDocumentAbstract
 		// Set the mime encoding
 		$this->setMimeEncoding('text/html');
 	}
+	
+	/**
+	 * Get the document head data
+	 *
+	 * @return	array	The document head data in array form
+	 */
+	public function getHeadData() { }
+
+	/**
+	 * Set the document head data
+	 *
+	 * @param	array	$data	The document head data in array form
+	 * @return	this
+	 */
+	public function setHeadData(array $data) { }
 
 	/**
 	 * Render the document.
Added getHeadData and setHeadData to KDocument