diff --git a/src/Connection/Protocols/ImapProtocol.php b/src/Connection/Protocols/ImapProtocol.php
index 17bc0e32..c7e3dba0 100644
--- a/src/Connection/Protocols/ImapProtocol.php
+++ b/src/Connection/Protocols/ImapProtocol.php
@@ -939,7 +939,7 @@ public function getUid(?int $id = null): Response {
         $uids = $this->uid_cache;
 
         if ($id == null) {
-            return Response::empty($this->debug)->setResult($uids);
+            return Response::empty($this->debug)->setResult($uids)->setCanBeEmpty(true);
         }
 
         foreach ($uids as $k => $v) {