diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrash.php b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
index 90f14fddd589c..ffc1b0eb5a20b 100644
--- a/apps/files_trashbin/lib/Sabre/AbstractTrash.php
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
@@ -55,7 +55,11 @@ public function getFileInfo(): FileInfo {
 		return $this->data;
 	}
 
-	public function getSize(): int {
+	/**
+	 * Removal of return type is intentional as int is not large enough on 32 bit systems
+	 * see https://github.com/nextcloud/server/issues/13160
+	 */
+	public function getSize() {
 		return $this->data->getSize();
 	}