diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index b61cad10e2..8117a2aacb 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -1608,9 +1608,9 @@ function wp_insert_term( $term, $taxonomy, $args = array() ) {
 
 	if ( $term_id = is_term($slug) ) {
 		$existing_term = $wpdb->get_row( $wpdb->prepare( "SELECT name FROM $wpdb->terms WHERE term_id = %d", $term_id), ARRAY_A );
-		// We've got an existing term, which matches the name of the new term:
-		if ( is_taxonomy_hierarchical($taxonomy) && $existing_term['name'] == $name ) {
-			// Heirarchical, and it matches an existing term, Do not allow same "name" in the same level.
+		// We've got an existing term in the same taxonomy, which matches the name of the new term:
+		if ( is_taxonomy_hierarchical($taxonomy) && $existing_term['name'] == $name && is_term( (int) $term_id, $taxonomy ) ) {
+			// Hierarchical, and it matches an existing term, Do not allow same "name" in the same level.
 			$siblings = get_terms($taxonomy, array('fields' => 'names', 'get' => 'all', 'parent' => (int)$parent) );
 			if ( in_array($name, $siblings) ) {
 				return new WP_Error('term_exists', __('A term with the name provided already exists with this parent.'));
@@ -1621,7 +1621,7 @@ function wp_insert_term( $term, $taxonomy, $args = array() ) {
 				$term_id = (int) $wpdb->insert_id;
 			}
 		} elseif ( $existing_term['name'] != $name ) {
-			// We've got an existing term, with a different name, Creat ethe new term.
+			// We've got an existing term, with a different name, Create the new term.
 			$slug = wp_unique_term_slug($slug, (object) $args);
 			if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) )
 				return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error);