diff --git a/pyleri/grammar.py b/pyleri/grammar.py
index 64fd525..40fcc3b 100644
--- a/pyleri/grammar.py
+++ b/pyleri/grammar.py
@@ -698,7 +698,7 @@ def _walk(self, element, pos, tree, rule, is_required):
 
 def create_grammar(
         elem: Element,
-        re_keywords: re.Pattern = _RE_KEYWORDS) -> Grammar:
+        re_keywords: 're.Pattern' = _RE_KEYWORDS) -> Grammar:
     class _Grammar(Grammar):
         RE_KEYWORDS = _RE_KEYWORDS
         START = elem