diff --git a/cfg/fs_cfg.py b/cfg/fs_cfg.py
index b478780c..f1e82cf5 100644
--- a/cfg/fs_cfg.py
+++ b/cfg/fs_cfg.py
@@ -91,7 +91,7 @@ Mod('t_out',
     maxcurrent = 2,
    )
 
-Mod('relais',
+Mod('relay',
     'frappy_psi.ionopimax.DigitalOutput',
     'relais for power output',
     addr = 'o2',
@@ -108,7 +108,7 @@ Mod('interlock',
     extra_T = 'T_extra',
     htr = 't_out',
     vacuum = 'p',
-    relais = 'relais',
+    relay = 'relay',
     control = 'T',
     wall_limit = 60,
     vacuum_limit = 0.001,