diff --git a/cfg/electromagnet_test_cfg.py b/cfg/electromagnet_test_cfg.py
index 5c63afaf..f3abbb4f 100644
--- a/cfg/electromagnet_test_cfg.py
+++ b/cfg/electromagnet_test_cfg.py
@@ -22,5 +22,5 @@ Mod('mot',
 
 Mod('sample_pos',
     'frappy_psi.electromagnet.SamplePosition',
-    motor=mot,
+    motor='mot',
     )