diff --git a/bench/emper.py b/bench/emper.py
index 7727b303b558fbd0ca55d82238e2c45519f790cc..a28c350d8a2c87478ed3bf43da45222e89d909f5 100644
--- a/bench/emper.py
+++ b/bench/emper.py
@@ -106,7 +106,8 @@ FLAVORS: Flavors = {
         'checkout': WAITFD_CHECKOUT,
     },
     'waitfd-no-punt': {
-        'meson_options': '-Dworker_sleep_strategy=waitfd -Dio_skip_waitfd_read_punt=true',
+        'meson_options':
+        '-Dworker_sleep_strategy=waitfd -Dio_skip_waitfd_read_punt=true',
         'checkout': WAITFD_CHECKOUT,
     },
     # 'waitfd-2iow': {