diff --git a/lib/Controller/ConfigController.php b/lib/Controller/ConfigController.php
index c0fb3ae79..771c9523d 100755
--- a/lib/Controller/ConfigController.php
+++ b/lib/Controller/ConfigController.php
@@ -263,14 +263,14 @@ private function setIntegrationConfig(array $values): array {
 
 		$runningFullReset = (
 
-			$oldClientSecret &&
-
-			$oldClientId &&
+			key_exists('openproject_instance_url', $values) &&
 
 			key_exists('openproject_client_id', $values) &&
 
 			key_exists('openproject_client_secret', $values) &&
 
+			$values['openproject_instance_url'] === null &&
+
 			$values['openproject_client_id'] === null &&
 
 			$values['openproject_client_secret'] === null