diff --git a/resources/quality/ultimaker3/um3_aa0.4_PC_Draft_Print.inst.cfg b/resources/quality/ultimaker3/um3_aa0.4_PC_Draft_Print.inst.cfg
index 11dad72e08..12463ab831 100644
--- a/resources/quality/ultimaker3/um3_aa0.4_PC_Draft_Print.inst.cfg
+++ b/resources/quality/ultimaker3/um3_aa0.4_PC_Draft_Print.inst.cfg
@@ -54,7 +54,7 @@ speed_travel = 250
 speed_wall = =math.ceil(speed_print * 40 / 50)
 speed_wall_0 = =math.ceil(speed_wall * 25 / 40)
 support_bottom_distance = =support_z_distance
-support_interface_line_distance = 0.4
+support_interface_density = 87.5
 support_interface_pattern = lines
 switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
diff --git a/resources/quality/ultimaker3/um3_aa0.4_PC_Fast_Print.inst.cfg b/resources/quality/ultimaker3/um3_aa0.4_PC_Fast_Print.inst.cfg
index 39b02f392d..9353a6c6fa 100644
--- a/resources/quality/ultimaker3/um3_aa0.4_PC_Fast_Print.inst.cfg
+++ b/resources/quality/ultimaker3/um3_aa0.4_PC_Fast_Print.inst.cfg
@@ -53,7 +53,7 @@ speed_travel = 250
 speed_wall = =math.ceil(speed_print * 40 / 50)
 speed_wall_0 = =math.ceil(speed_wall * 25 / 40)
 support_bottom_distance = =support_z_distance
-support_interface_line_distance = 0.4
+support_interface_density = 87.5
 support_interface_pattern = lines
 switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
diff --git a/resources/quality/ultimaker3/um3_aa0.4_PC_High_Quality.inst.cfg b/resources/quality/ultimaker3/um3_aa0.4_PC_High_Quality.inst.cfg
index ab8a520b5b..01fe47a6a2 100644
--- a/resources/quality/ultimaker3/um3_aa0.4_PC_High_Quality.inst.cfg
+++ b/resources/quality/ultimaker3/um3_aa0.4_PC_High_Quality.inst.cfg
@@ -54,7 +54,7 @@ speed_travel = 250
 speed_wall = =math.ceil(speed_print * 40 / 50)
 speed_wall_0 = =math.ceil(speed_wall * 25 / 40)
 support_bottom_distance = =support_z_distance
-support_interface_line_distance = 0.4
+support_interface_density = 87.5
 support_interface_pattern = lines
 switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20
diff --git a/resources/quality/ultimaker3/um3_aa0.4_PC_Normal_Quality.inst.cfg b/resources/quality/ultimaker3/um3_aa0.4_PC_Normal_Quality.inst.cfg
index 6d92720ae4..41272a7718 100644
--- a/resources/quality/ultimaker3/um3_aa0.4_PC_Normal_Quality.inst.cfg
+++ b/resources/quality/ultimaker3/um3_aa0.4_PC_Normal_Quality.inst.cfg
@@ -52,7 +52,7 @@ speed_travel = 250
 speed_wall = =math.ceil(speed_print * 40 / 50)
 speed_wall_0 = =math.ceil(speed_wall * 25 / 40)
 support_bottom_distance = =support_z_distance
-support_interface_line_distance = 0.4
+support_interface_density = 87.5
 support_interface_pattern = lines
 switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 20