diff --git a/src/MTProtoTools/PeerDatabase.php b/src/MTProtoTools/PeerDatabase.php
index 6b68e9759..f64e46b2f 100644
--- a/src/MTProtoTools/PeerDatabase.php
+++ b/src/MTProtoTools/PeerDatabase.php
@@ -153,7 +153,11 @@ final class PeerDatabase implements TLCallback
 
     public function getFull(int $id): ?array
     {
-        return $this->fullDb[$id];
+        $result = $this->fullDb[$id];
+        if ($result !== null) {
+            $result['id'] = $id;
+        }
+        return $result;
     }
     public function expireFull(int $id): void
     {