diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index 8cbef3c718..9865f42be7 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -390,6 +390,9 @@ function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
 		else
 			$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
 		$wp->add_query_var( $args['query_var'] );
+	} else {
+		// Force query_var to false for non-public taxonomies.
+		$args['query_var'] = false;
 	}
 
 	if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e3f68b8dcc..d54a9b4c8a 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36107';
+$wp_version = '4.5-alpha-36108';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.