diff --git a/tests/phpstan/stubs/leveldb.stub b/tests/phpstan/stubs/leveldb.stub
index 0b8a4f7cc..11423d25c 100644
--- a/tests/phpstan/stubs/leveldb.stub
+++ b/tests/phpstan/stubs/leveldb.stub
@@ -8,4 +8,11 @@ class LevelDB{
 	 * @return string|false
 	 */
 	public function get($key, array $read_options = []){}
-}
\ No newline at end of file
+}
+
+/**
+ * @implements Iterator<string, string>
+ */
+class LevelDBIterator implements Iterator{
+
+}