diff --git a/exercises/cloze_exercise.php b/exercises/cloze_exercise.php
index 3c6c9f3382c7a0a12e1dcc85e001d3df7c30b324..8499b8ab032996bb0c93ebb77008409b00696c3e 100644
--- a/exercises/cloze_exercise.php
+++ b/exercises/cloze_exercise.php
@@ -370,7 +370,7 @@ class cloze_exercise extends Exercise
                 foreach ($this->task['answers'][$blank] as $answer) {
                     $answer_text = $answer['text'];
 
-                    if (preg_match('/^$|^[":*~]|\||\]\]/', $answer_text)) {
+                    if (preg_match('/^$|^[":*~ ]|\||\]\]|[] ]$/', $answer_text)) {
                         $answer_text = '"' . $answer_text . '"';
                     }