diff --git a/wp-includes/query.php b/wp-includes/query.php
index f52919bfc8..9bf4faa3ab 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -2673,7 +2673,7 @@ class WP_Query {
 
 			if ( $term && ! is_wp_error($term) )  {
 				$this->queried_object = $term;
-				$this->queried_object_id = $term->term_id;
+				$this->queried_object_id = (int) $term->term_id;
 			}
 		} elseif ( $this->is_posts_page ) {
 			$page_for_posts = get_option('page_for_posts');