diff --git a/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl b/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
index 13b22ec0..29863956 100644
--- a/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
@@ -338,7 +338,7 @@ Motor dy $motor_driver_type [params \
   asyncqueue mc1\
   axis G\
   units mm\
-  hardlowerlim 0\
+  hardlowerlim -3.1\
   hardupperlim 1086\
   maxSpeed 10\
   maxAccel 1\