diff --git a/doc/ChangeLog b/doc/ChangeLog
index dacee5a..d9b6f57 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -15,6 +15,7 @@ ChangeLog for SemantiScuttle
 - api/posts/add respects the "replace" parameter now
 - Fix privacy issue when fetching tags of several users
 - Only URLs with an allowed protocol may be added to the database
+- Support HTTPS connections when $root is not configured
 
 
 0.97.2 - 2011-02-17
diff --git a/src/SemanticScuttle/constants.php b/src/SemanticScuttle/constants.php
index b023840..f8567d9 100644
--- a/src/SemanticScuttle/constants.php
+++ b/src/SemanticScuttle/constants.php
@@ -41,7 +41,10 @@ if (!isset($GLOBALS['root'])) {
         $rootTmp .= '/';
     }
 
-    define('ROOT', 'http://'. $_SERVER['HTTP_HOST'] . $rootTmp);
+    //we do not prepend http since we also want to support https connections
+    // "http" is not required; it's automatically determined by the browser
+    // depending on the current connection.
+    define('ROOT', '//'. $_SERVER['HTTP_HOST'] . $rootTmp);
 } else {
     define('ROOT', $GLOBALS['root']);
 }