diff --git a/setup/wizardcontroller.class.inc.php b/setup/wizardcontroller.class.inc.php
index b25e9e771..5c6a54f3c 100644
--- a/setup/wizardcontroller.class.inc.php
+++ b/setup/wizardcontroller.class.inc.php
@@ -181,7 +181,7 @@ class WizardController
 					$oP->add("<h2>Fatal error</h2>\n");
 					$oP->error("<b>Error:</b> the configuration file '".$sRelativePath."' already exists and cannot be overwritten.");
 					$oP->p("The wizard cannot modify the configuration file for you. If you want to upgrade ".ITOP_APPLICATION.", make sure that the file '<b>".$sRelativePath."</b>' can be modified by the web server.");
-					$oP->p('<button type="button" onclick="window.location.reload()">Reload</button>');
+					$oP->p('<button type="button" class="ibo-button ibo-is-regular ibo-is-primary" onclick="window.location.reload()">Reload</button>');
 					$oP->output();
 					// Prevent token creation
 					exit;