diff --git a/Generator/CaptchaGenerator.php b/Generator/CaptchaGenerator.php
index bf1f93b..04e424d 100644
--- a/Generator/CaptchaGenerator.php
+++ b/Generator/CaptchaGenerator.php
@@ -76,7 +76,8 @@ class CaptchaGenerator
 
         // Returns the image generation URL
         if ($options['as_url']) {
-            return $this->router->generate('gregwar_captcha.generate_captcha', array('key' => $options['session_key']));
+            return $this->router->generate('gregwar_captcha.generate_captcha', 
+                array('key' => $options['session_key'], 'n' => time()));
         }
 
         return 'data:image/jpeg;base64,' . base64_encode($this->generate($options));
diff --git a/Resources/views/captcha.html.twig b/Resources/views/captcha.html.twig
index b23251b..88fc5fc 100644
--- a/Resources/views/captcha.html.twig
+++ b/Resources/views/captcha.html.twig
@@ -3,7 +3,7 @@
 -
 {% else %}
 {% spaceless %}
-    <img id="{{ image_id }}" src="{{ captcha_code }}?n={{ 'now'|date('U') }}" alt="" title="captcha" width="{{ captcha_width }}" height="{{ captcha_height }}" />
+    <img id="{{ image_id }}" src="{{ captcha_code }}" alt="" title="captcha" width="{{ captcha_width }}" height="{{ captcha_height }}" />
     {% if reload %}
     <script type="text/javascript">
         function reload_{{ image_id }}() {