diff --git a/doc/rpm-build/apache.conf b/doc/rpm-build/apache.conf
index f16fae90c7..4a0246adb1 100644
--- a/doc/rpm-build/apache.conf
+++ b/doc/rpm-build/apache.conf
@@ -47,6 +47,7 @@ RedirectMatch ^(/principals/users/.*)$ /egroupware/groupdav.php$1
   php_admin_value upload_tmp_dir /tmp
   php_value post_max_size 65M
   php_value max_input_vars 3000
+  php_admin_value session.gc_maxlifetime 14400
   <Files ~ "\.inc\.php$">
     <IfModule !mod_authz_core.c>
       # Apache 2.4