diff --git a/sphinx_d2lang/d2lang.py b/sphinx_d2lang/d2lang.py
index 9ac8ae3..0a0d40e 100644
--- a/sphinx_d2lang/d2lang.py
+++ b/sphinx_d2lang/d2lang.py
@@ -2,7 +2,7 @@ from docutils import nodes
 
 from docutils.parsers.rst import Directive
 
-from shutils import which
+from shutil import which
 import shlex
 
 class D2langDirective(Directive):