diff --git a/devices/undulator.py b/devices/undulator.py
index f12d430..730c899 100644
--- a/devices/undulator.py
+++ b/devices/undulator.py
@@ -171,7 +171,7 @@ class Undulators(Adjustable):
 
 class Undulator(PVAdjustable):
 
-    def __init__(self, name, accuracy=0.1):
+    def __init__(self, name, accuracy=0.4):
         pvname_setvalue = name + ":K_SET"
         pvname_readback = name + ":K_READ"
         super().__init__(pvname_setvalue, pvname_readback=pvname_readback, accuracy=accuracy, active_move=True, name=name, internal=True)