diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrash.php b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
index b1088f132216f..48d791d2cceb3 100644
--- a/apps/files_trashbin/lib/Sabre/AbstractTrash.php
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
@@ -59,7 +59,7 @@ public function getFileInfo(): FileInfo {
 	}
 
 	public function getSize(): int {
-		return $this->data->getSize();
+		return (int)$this->data->getSize();
 	}
 
 	public function getLastModified(): int {