diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index 6497cb1f67..b8d1bff7a4 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -680,6 +680,7 @@ function wp_delete_term( $term, $taxonomy, $args = array() ) {
 			$terms = array($default);
 		else
 			$terms = array_diff($terms, array($term));
+		$terms = array_map('intval', $terms);
 		wp_set_object_terms($object, $terms, $taxonomy);
 	}