diff --git a/doc/rpm-build/apache.conf b/doc/rpm-build/apache.conf
index 19c07a55f8..526ee0e440 100644
--- a/doc/rpm-build/apache.conf
+++ b/doc/rpm-build/apache.conf
@@ -39,6 +39,7 @@ RedirectMatch ^(/principals/users/.*)$ /egroupware/groupdav.php$1
   php_value upload_max_filesize 64M
   php_admin_value upload_tmp_dir /tmp
   php_value post_max_size 65M
+  php_value max_input_vars 3000
   <Files ~ "\.inc\.php$">
     Order allow,deny
     Deny from all