diff --git a/script/cibuild b/script/cibuild
index c9332040094d..0e9f764f7c14 100755
--- a/script/cibuild
+++ b/script/cibuild
@@ -90,7 +90,7 @@ def run_script(script, args=[]):
 
 
 def setup_nodenv():
-  if os.isdir('/usr/local/share/nodenv'):
+  if os.path.isdir('/usr/local/share/nodenv'):
     os.environ['NODENV_ROOT'] = '/usr/local/share/nodenv'
     os.environ['PATH'] += '/usr/local/share/nodenv/bin:/usr/local/share/nodenv/shims:' + os.environ['PATH']
     os.environ['NODENV_VERSION'] = 'v0.10.21'