diff --git a/resources/variants/ultimaker3_aa0.8.inst.cfg b/resources/variants/ultimaker3_aa0.8.inst.cfg
index bac1826a63..a938ea1a8f 100644
--- a/resources/variants/ultimaker3_aa0.8.inst.cfg
+++ b/resources/variants/ultimaker3_aa0.8.inst.cfg
@@ -30,6 +30,7 @@ line_width = =machine_nozzle_size
 machine_min_cool_heat_time_window = 15
 machine_nozzle_cool_down_speed = 0.85
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_size = 0.8
 material_final_print_temperature = =material_print_temperature - 10
 material_initial_print_temperature = =material_print_temperature - 5
 material_standby_temperature = 100
diff --git a/resources/variants/ultimaker3_bb0.8.inst.cfg b/resources/variants/ultimaker3_bb0.8.inst.cfg
index 79032d7ed3..104b4d09d1 100644
--- a/resources/variants/ultimaker3_bb0.8.inst.cfg
+++ b/resources/variants/ultimaker3_bb0.8.inst.cfg
@@ -24,6 +24,7 @@ jerk_support_interface = =math.ceil(jerk_topbottom * 1 / 5)
 layer_height = 0.2
 machine_min_cool_heat_time_window = 15
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_size = 0.8
 material_print_temperature = =default_material_print_temperature + 10
 material_standby_temperature = 100
 multiple_mesh_overlap = 0