diff --git a/stubs/trie/hexary.pyi b/stubs/trie/hexary.pyi
index 254cef4041..d464ac3564 100644
--- a/stubs/trie/hexary.pyi
+++ b/stubs/trie/hexary.pyi
@@ -1,6 +1,5 @@
 from typing import Dict
 
-
 class HexaryTrie:
     db: Dict
     root_hash: bytes