diff --git a/lib/public/AppFramework/Http/Response.php b/lib/public/AppFramework/Http/Response.php
index 06541df2da2f3..9e218384954ba 100644
--- a/lib/public/AppFramework/Http/Response.php
+++ b/lib/public/AppFramework/Http/Response.php
@@ -211,7 +211,7 @@ public function addHeader($name, $value) {
 			$config = \OC::$server->get(IConfig::class);
 
 			if ($config->getSystemValueBool('debug', false)) {
-				\OC::$server->get(LoggerInterface::class)->error('Setting custom header on a 204 or 304 is not supported (Header: {header})', [
+				\OC::$server->get(LoggerInterface::class)->error('Setting custom header on a 304 is not supported (Header: {header})', [
 					'header' => $name,
 				]);
 			}