diff --git a/src/wp-includes/class-wp-term-query.php b/src/wp-includes/class-wp-term-query.php
index dd42166cfd..cfb4474d05 100644
--- a/src/wp-includes/class-wp-term-query.php
+++ b/src/wp-includes/class-wp-term-query.php
@@ -621,7 +621,7 @@ class WP_Term_Query {
 		$this->sql_clauses['orderby'] = $orderby ? "ORDER BY $orderby $order" : '';
 		$this->sql_clauses['limits']  = $limits;
 
-		$this->request = $this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}";
+		$this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}";
 
 		// $args can be anything. Only use the args defined in defaults to compute the key.
 		$key = md5( serialize( wp_array_slice_assoc( $args, array_keys( $this->query_var_defaults ) ) ) . serialize( $taxonomies ) . $this->request );