diff --git a/wp-permastructure.php b/wp-permastructure.php
index 30e891e..3c401c3 100644
--- a/wp-permastructure.php
+++ b/wp-permastructure.php
@@ -241,7 +241,7 @@ public function add_permastructs( $rules ) {
 	 *
 	 * @return string    The parsed permalink
 	 */
-	public function parse_permalinks( $post_link, WP_Post $post, $leavename, $sample = false ) {
+	public function parse_permalinks( $post_link, $post, $leavename, $sample = false ) {
 
 		// Make a stupid request and we'll do nothing.
 		if ( !post_type_exists( $post->post_type ) )