diff --git a/src/etc/inc/plugins.inc.d/openvpn.inc b/src/etc/inc/plugins.inc.d/openvpn.inc
index 5c1dff9f8..1a92ccf9b 100644
--- a/src/etc/inc/plugins.inc.d/openvpn.inc
+++ b/src/etc/inc/plugins.inc.d/openvpn.inc
@@ -890,8 +890,8 @@ function openvpn_reconfigure($mode, $settings, $device_only = false)
         }
     }
 
-    if (isset($settings['reneg-sec']) && $settings['reneg-sec'] != "") {
-        $conf .= "reneg-sec ".$settings['reneg-sec']."\n";
+    if (isset($settings['reneg-sec']) && $settings['reneg-sec'] != '') {
+        $conf .= "reneg-sec {$settings['reneg-sec']}\n";
     }
 
     openvpn_add_custom($settings, $conf);