diff --git a/Makefile b/Makefile
index 179399e47..b4f8e4fe0 100644
--- a/Makefile
+++ b/Makefile
@@ -119,6 +119,7 @@ CORE_DEPENDS?=		${CORE_DEPENDS_${CORE_ARCH}} \
 			php${CORE_PHP}-pdo \
 			php${CORE_PHP}-pecl-radius \
 			php${CORE_PHP}-phalcon \
+			php${CORE_PHP}-phpseclib \
 			php${CORE_PHP}-session \
 			php${CORE_PHP}-simplexml \
 			php${CORE_PHP}-sockets \
diff --git a/src/www/system_certmanager.php b/src/www/system_certmanager.php
index 29ea4a7e1..4971e80d6 100644
--- a/src/www/system_certmanager.php
+++ b/src/www/system_certmanager.php
@@ -28,8 +28,8 @@
  */
 
 require_once('guiconfig.inc');
-require_once("system.inc");
-//require_once('phpseclib/vendor/autoload.php');
+require_once('system.inc');
+require_once('phpseclib/File/X509.php');
 
 function csr_generate(&$cert, $keylen, $dn, $digest_alg = 'sha256')
 {