diff --git a/webapp/_lib/model/class.Captcha.php b/webapp/_lib/model/class.Captcha.php
index f8b7169a2d..aa2970472a 100644
--- a/webapp/_lib/model/class.Captcha.php
+++ b/webapp/_lib/model/class.Captcha.php
@@ -18,7 +18,7 @@ public function __construct() {
 
         if ($config->getValue('recaptcha_enable')) {
             $this->type = 1;
-            require_once $config->getValue('source_root_path').'extlib/recaptcha-php-1.10/recaptchalib.php';
+            require_once $config->getValue('source_root_path').'_lib/extlib/recaptcha-php-1.10/recaptchalib.php';
             $this->pubkey = $config->getValue('recaptcha_public_key');
             $this->prikey = $config->getValue('recaptcha_private_key');
         } else {
@@ -64,4 +64,4 @@ public function check() {
                 break;
         }
     }
-}
\ No newline at end of file
+}