diff --git a/resources/profiles/RatRig.idx b/resources/profiles/RatRig.idx
index f0c117464..b8811aa5e 100644
--- a/resources/profiles/RatRig.idx
+++ b/resources/profiles/RatRig.idx
@@ -1,3 +1,4 @@
 min_slic3r_version = 2.4.1-alpha0
+1.0.2 Updated start g-code.
 1.0.1 Various fixes and improvements. Commented filament sensor initialisation for v-Minion (optional HW).
 1.0.0 Initial RatRig bundle
\ No newline at end of file
diff --git a/resources/profiles/RatRig.ini b/resources/profiles/RatRig.ini
index 5558cf698..56fab6e0d 100644
--- a/resources/profiles/RatRig.ini
+++ b/resources/profiles/RatRig.ini
@@ -9,7 +9,7 @@
 name = RatRig
 # Configuration version of this file. Config file will only be installed, if the config_version differs.
 # This means, the server may force the Slic3r configuration to be downgraded.
-config_version = 1.0.1
+config_version = 1.0.2
 # Where to get the updates from?
 config_update_url = https://files.prusa3d.com/wp-content/uploads/repository/PrusaSlicer-settings-master/live/RatRig/
 # The printer models will be shown by the Configuration Wizard in this order,
@@ -433,7 +433,7 @@ retract_restart_extra_toolchange = 0
 retract_speed = 40
 silent_mode = 0
 single_extruder_multi_material = 0
-start_gcode = M190 S0 ; Prevents prusaslicer from prepending m190 to the gcode interfering with the macro\nM109 S0 ; Prevents prusaslicer from prepending m109 to the gcode interfering with the macro\nSTART_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature]\n;enable this if you have a BTT Smart Filament Sensor\nSET_FILAMENT_SENSOR SENSOR=my_sensor ENABLE=0\n
+start_gcode = M190 S0 ; Prevents prusaslicer from prepending m190 to the gcode interfering with the macro\nM109 S0 ; Prevents prusaslicer from prepending m109 to the gcode interfering with the macro\nSET_GCODE_VARIABLE MACRO=RatOS VARIABLE=relative_extrusion VALUE=True\nSTART_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature]\n;enable this if you have a BTT Smart Filament Sensor\nSET_FILAMENT_SENSOR SENSOR=my_sensor ENABLE=0\n
 thumbnails = 64x64,400x300
 toolchange_gcode = 
 use_firmware_retraction = 0
@@ -496,7 +496,7 @@ retract_restart_extra_toolchange = 0
 retract_speed = 40
 silent_mode = 0
 single_extruder_multi_material = 0
-start_gcode = M190 S0 ; Prevents prusaslicer from prepending m190 to the gcode interfering with the macro\nM109 S0 ; Prevents prusaslicer from prepending m109 to the gcode interfering with the macro\nSTART_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature]\n;enable this if you have a BTT Smart Filament Sensor\n; SET_FILAMENT_SENSOR SENSOR=my_sensor ENABLE=0\n
+start_gcode = M190 S0 ; Prevents prusaslicer from prepending m190 to the gcode interfering with the macro\nM109 S0 ; Prevents prusaslicer from prepending m109 to the gcode interfering with the macro\nSET_GCODE_VARIABLE MACRO=RatOS VARIABLE=relative_extrusion VALUE=True\nSTART_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature]\n;enable this if you have a BTT Smart Filament Sensor\nSET_FILAMENT_SENSOR SENSOR=my_sensor ENABLE=0\n
 start_gcode_manual = 0
 template_custom_gcode = 
 thumbnails = 64x64,400x300