diff --git a/docs/source/conf.py b/docs/source/conf.py
index 7f2affbb75..87c50d1404 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -151,7 +151,7 @@ def setup(app):
     app.add_stylesheet('figures.css')
     app.add_stylesheet('luadoc.css')
     try:
-        subprocess.call(project_root + '/docs/source/generate_luadoc.sh')
+        subprocess.call(['sh', project_root + '/docs/source/generate_luadoc.sh'])
     except Exception as e:
         print('Can\'t generate Lua API documentation:', e)