diff --git a/includes/class-wp-push-syndication-server.php b/includes/class-wp-push-syndication-server.php
index 209c71d00a957d312abece2b433421ce35a0e35a..1da1b07951297ee7120f17486c564354802b79e2 100644
--- a/includes/class-wp-push-syndication-server.php
+++ b/includes/class-wp-push-syndication-server.php
@@ -996,7 +996,7 @@ class WP_Push_Syndication_Server {
 			return array( 'state' => 'new' );
 
 		foreach( $slave_post_states as $state => $sites  ) {
-			if( isset( $sites[ $site_ID ] ) && is_array( $sites[ $site_ID ] ) && empty( $sites[ $site_ID ]['ext_ID'] )   ) {
+			if( isset( $sites[ $site_ID ] ) && is_array( $sites[ $site_ID ] ) && ! empty( $sites[ $site_ID ]['ext_ID'] )   ) {
 				if( $client->is_post_exists( $sites[ $site_ID ]['ext_ID'] ) ) {
 					$info = array(
 						'state'     => $state,