diff --git a/installer/rcube_install.php b/installer/rcube_install.php
index 7522b3b98..d5811ded1 100644
--- a/installer/rcube_install.php
+++ b/installer/rcube_install.php
@@ -456,7 +456,7 @@ class rcube_install
         '0.6-beta', '0.6',
         '0.7-beta', '0.7', '0.7.1', '0.7.2', '0.7.3',
         '0.8-beta', '0.8-rc', '0.8.0', '0.8.1', '0.8.2', '0.8.3', '0.8.4', '0.8.5',
-        '0.9-beta',
+        '0.9-beta', '0.9-rc',
     ));
     return $select;
   }