diff --git a/src/Server/TextDocument.php b/src/Server/TextDocument.php
index e4adc22..84103df 100644
--- a/src/Server/TextDocument.php
+++ b/src/Server/TextDocument.php
@@ -26,6 +26,7 @@ use LanguageServer\Protocol\{
 };
 use LanguageServer\Index\ReadableIndex;
 use Sabre\Event\Promise;
+use Sabre\Uri;
 use function Sabre\Event\coroutine;
 
 /**