diff --git a/Question.class.php b/Question.class.php
index 42ef04c..9161239 100644
--- a/Question.class.php
+++ b/Question.class.php
@@ -138,7 +138,7 @@ class Question
     return $this->question;
   }
 
-  public setQuestion($question)
+  public function setQuestion($question)
   {
     $this->question = $question;
   }