diff --git a/settings/Controller/CheckSetupController.php b/settings/Controller/CheckSetupController.php
index b23c48f446634..9b4dc1c0956b7 100644
--- a/settings/Controller/CheckSetupController.php
+++ b/settings/Controller/CheckSetupController.php
@@ -289,7 +289,7 @@ private function forwardedForHeadersWorking() {
 		$trustedProxies = $this->config->getSystemValue('trusted_proxies', []);
 		$remoteAddress = $this->request->getHeader('REMOTE_ADDR');
 
-		if (empty($trustedProxies) && $this->request->getHeader('X-Forwarded-Host')) {
+		if (empty($trustedProxies) && $this->request->getHeader('X-Forwarded-Host') !== '') {
 			return false;
 		}