diff --git a/Scripts/start_stop.cfg b/Scripts/start_stop.cfg
index fd1c295..5f38149 100644
--- a/Scripts/start_stop.cfg
+++ b/Scripts/start_stop.cfg
@@ -129,6 +129,7 @@ gcode:
 [gcode_macro _START_PRINT_BED_MESH]  
 gcode:
 	{% set default_profile = printer["gcode_macro RatOS"].bed_mesh_profile|default('ratos') %}
+	{% set min_temp = printer["gcode_macro RatOS"].preheat_extruder_temp|float %}
 	{% if printer["gcode_macro RatOS"].calibrate_bed_mesh|lower == 'true' %}
 		BED_MESH_CLEAR
         {% set TARGET_TEMP = printer.heater_bed.target %}