diff --git a/lib/EventListener/FileEventsListener.php b/lib/EventListener/FileEventsListener.php
index d03e1ee7..36878a79 100644
--- a/lib/EventListener/FileEventsListener.php
+++ b/lib/EventListener/FileEventsListener.php
@@ -108,7 +108,7 @@ public function generateBody(Exception $ex): mixed {
 	private function acceptHtml(): bool {
 		foreach (explode(',', $this->request->getHeader('Accept')) as $part) {
 			$subparts = explode(';', $part);
-			if (str_ends_with($subparts[0], '/html')) {
+			if (str_ends_with($subparts[0], 'text/html')) {
 				return true;
 			}
 		}