diff --git a/server/plugins-available/openvz_plugin.inc.php b/server/plugins-available/openvz_plugin.inc.php
index d6abced17f3d56fe448c9ea305f51d7a174f0430..5cc4bf6522aaf1a64ab8d375b96ed8b6f89de18a 100644
--- a/server/plugins-available/openvz_plugin.inc.php
+++ b/server/plugins-available/openvz_plugin.inc.php
@@ -121,6 +121,11 @@ class openvz_plugin {
 		file_put_contents('/etc/vz/conf/'.$veid.'.conf', $data['new']['config']);
 		$app->log("Writing new configuration for $veid", LOGLEVEL_DEBUG);
 
+		//* new diskspace for ploop-containers requieres "vzctl set"
+		if($data['new']['diskspace'] != $data['old']['diskspace']) {
+			exec("vzctl set ".$veid." --diskspace ".$data['new']['diskspace']."G --save");
+		}
+
 		//* Apply config changes to the VM
 		if($data['new']['active'] == 'y' && $data['old']['active'] == 'y') {
 			exec("vzctl restart $veid");