diff --git a/site_ansto/instrument/qld/motor_configuration.tcl b/site_ansto/instrument/qld/motor_configuration.tcl
index d019bc34..0edbde16 100644
--- a/site_ansto/instrument/qld/motor_configuration.tcl
+++ b/site_ansto/instrument/qld/motor_configuration.tcl
@@ -26,8 +26,8 @@ set slitStepRate  20125
 #Measured slit gap, in units, after homing on limit switches
 set ss1h_Gap 52.6
 set ss1v_Gap 128.6
-set ss2h_Gap 51
-set ss2v_Gap 205
+set ss2h_Gap 51.0
+set ss2v_Gap 205.0
 
 set ss1r_Home [expr $ss1h_Gap/2*$slitStepRate]
 set ss1l_Home [expr $ss1h_Gap/2*$slitStepRate]