diff --git a/inc/tags.php b/inc/tags.php
index 9aec3ab..290ed70 100644
--- a/inc/tags.php
+++ b/inc/tags.php
@@ -336,7 +336,7 @@ function process_tags( $new, $old, $post ) {
 
 		$tags = $this->gather_all_tags( $post );
 
-		wp_set_post_tags( $post->ID, $tags, false );
+		wp_set_post_tags( $post->ID, $tags, true );
 	}
 
 	function gather_all_tags( $post ) {