Index: captcha.module
===================================================================
RCS file: /cvs/drupal/contributions/modules/captcha/captcha.module,v
retrieving revision 1.25.2.2
diff -r1.25.2.2 captcha.module
114c114,117
< 
---
>   if (empty($captcha_response)) {
>   	return false;
>   }
>