diff --git a/op/op.ExtensionMgr.php b/op/op.ExtensionMgr.php
index dabffb307..0ffd211b5 100644
--- a/op/op.ExtensionMgr.php
+++ b/op/op.ExtensionMgr.php
@@ -68,7 +68,7 @@ elseif ($action == "refresh") { /* {{{ */
 	$extMgr->createExtensionConf();
 	$controller->setParam('extmgr', $extMgr);
 	if (!$controller($_POST)) {
-		UI::exitError(getMLText("admin_tools"),getMLText("error_occured"));
+		UI::exitError(getMLText("admin_tools"),$extMgr->getErrorMsg());
 	}
 	$session->setSplashMsg(array('type'=>'success', 'msg'=>getMLText('splash_extension_refresh')));
 	add_log_line();