diff --git a/www/class/centreon-clapi/centreonCentbrokerCfg.class.php b/www/class/centreon-clapi/centreonCentbrokerCfg.class.php
index e8fb094ac8c401510e2a3e2a184da41e78058348..57b88bf8df19a867c2f30e13c7a418166add5d76 100644
--- a/www/class/centreon-clapi/centreonCentbrokerCfg.class.php
+++ b/www/class/centreon-clapi/centreonCentbrokerCfg.class.php
@@ -747,7 +747,7 @@ class CentreonCentbrokerCfg extends CentreonObject
                     }
                     $row['config_value'] = CentreonUtils::convertLineBreak($row['config_value']);
                     if ($row['config_value'] != '') {
-                        $setParamStr[$row['config_group'] . '_' . $row['config_group_id']] . =
+                        $setParamStr[$row['config_group'] . '_' . $row['config_group_id']] .=
                             $this->action.$this->delim."SET".strtoupper($row['config_group']) .
                             $this->delim.$element['config_name'] .
                             $this->delim.$row['config_group_id'] .