diff --git a/meson/generate-stylesheets.py b/meson/generate-stylesheets.py
index 6e402b61..599d098f 100644
--- a/meson/generate-stylesheets.py
+++ b/meson/generate-stylesheets.py
@@ -10,4 +10,4 @@ distroot = os.environ.get('MESON_DIST_ROOT')
 stylesheet_path = PurePath('data/gnome-classic.css')
 src = PurePath(sourceroot, stylesheet_path.with_suffix('.scss'))
 dst = PurePath(distroot, stylesheet_path)
-subprocess.call(['sassc', '-a', src, dst])
+subprocess.run(['sassc', '-a', src, dst], check=True)