diff --git a/admin_manual/installation/source_installation.rst b/admin_manual/installation/source_installation.rst
index e713826bf..be3d90b4d 100644
--- a/admin_manual/installation/source_installation.rst
+++ b/admin_manual/installation/source_installation.rst
@@ -71,6 +71,7 @@ Required:
 * PHP module JSON
 * PHP module libxml (Linux package libxml2 must be >=2.7.0)
 * PHP module mbstring
+* PHP module openssl
 * PHP module posix
 * PHP module SimpleXML
 * PHP module XMLReader
@@ -93,7 +94,6 @@ Database connectors (pick the one for your database:)
 * PHP module intl (increases language translation performance and fixes sorting
   of non-ASCII characters)
 * PHP module mcrypt (increases file encryption performance)
-* PHP module openssl (required for accessing HTTPS resources)
 
 Required for specific apps: