diff --git a/lib/private/Files/ObjectStore/S3ConnectionTrait.php b/lib/private/Files/ObjectStore/S3ConnectionTrait.php
index b7017583dc279..feb6a9f729cfc 100644
--- a/lib/private/Files/ObjectStore/S3ConnectionTrait.php
+++ b/lib/private/Files/ObjectStore/S3ConnectionTrait.php
@@ -35,7 +35,7 @@ protected function parseParams($params) {
 		$this->id = 'amazon::' . $params['bucket'];
 
 		$this->test = isset($params['test']);
-		$this->bucket = $params['bucket'];
+		$this->bucket = trim($params['bucket']);
 		// Default to 5 like the S3 SDK does
 		$this->concurrency = $params['concurrency'] ?? 5;
 		$this->proxy = $params['proxy'] ?? false;