diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 4df893e1dc..f90e1e84f3 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -134,6 +134,7 @@
 		<li>[Fix] Correctly determine permissions to show quick reply button. (Bug #56555)</li>
 		<li>[Fix] Do not unsubscribe users from topics replying with quickreply. (Bug #56235)</li>
 		<li>[Fix] Don't submit when pressing enter on preview button. (Bug #54395)</li>
+		<li>[Fix] Load reCAPTCHA over https when using a secure connection to the board. (Bug #55755)</li>
 		<li>[Change] Move redirect into a hidden field to avoid issues with mod_security. (Bug #54145)</li>
 		<li>[Change] Log activation through inactive users ACP. (Bug #30145)</li>
 		<li>[Change] Send time of last item instead of current time in ATOM Feeds. (Bug #53305)</li>
diff --git a/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php b/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php
index d4543dddfc..0f0bfc4156 100644
--- a/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php
+++ b/phpBB/includes/captcha/plugins/phpbb_recaptcha_plugin.php
@@ -28,10 +28,17 @@ if (!class_exists('phpbb_default_captcha'))
 class phpbb_recaptcha extends phpbb_default_captcha
 {
 	var $recaptcha_server = 'http://api.recaptcha.net';
+	var $recaptcha_server_secure = 'https://api-secure.recaptcha.net'; // class constants :(
 	var $recaptcha_verify_server = 'api-verify.recaptcha.net';
 	var $challenge;
 	var $response;
 
+	// PHP4 Constructor
+	function phpbb_recaptcha()
+	{
+		$this->recaptcha_server = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? $this->recaptcha_server_secure : $this->recaptcha_server;
+	}
+
 	function init($type)
 	{
 		global $config, $db, $user;