diff --git a/sphinx_d2lang/__init__.py b/sphinx_d2lang/__init__.py
index a942297..a18932e 100644
--- a/sphinx_d2lang/__init__.py
+++ b/sphinx_d2lang/__init__.py
@@ -4,7 +4,7 @@ from .d2lang import D2langDirective
 
 from typing import Any, Dict, List, Tuple
 
-from shutil import whitch
+from shutil import which
 
 def setup(application: Sphinx) -> Dict[str, Any]:
     """