diff --git a/resources/variants/ultimaker3_aa0.8.inst.cfg b/resources/variants/ultimaker3_aa0.8.inst.cfg
index 9d31e166ed..1e8366c765 100644
--- a/resources/variants/ultimaker3_aa0.8.inst.cfg
+++ b/resources/variants/ultimaker3_aa0.8.inst.cfg
@@ -62,5 +62,6 @@ switch_extruder_prime_speed = 20
 switch_extruder_retraction_amount = 16.5
 top_bottom_thickness = 1.4
 wall_0_inset = 0
+wall_line_width_0 = =wall_line_width
 wall_line_width_x = =wall_line_width
 wall_thickness = 2
diff --git a/resources/variants/ultimaker3_bb0.8.inst.cfg b/resources/variants/ultimaker3_bb0.8.inst.cfg
index 3a984318c7..ddb1aa3c7e 100644
--- a/resources/variants/ultimaker3_bb0.8.inst.cfg
+++ b/resources/variants/ultimaker3_bb0.8.inst.cfg
@@ -86,5 +86,6 @@ switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 12
 top_bottom_thickness = 1
 wall_0_inset = 0
+wall_line_width_0 = =wall_line_width
 wall_line_width_x = =wall_line_width
 wall_thickness = 1
diff --git a/resources/variants/ultimaker3_extended_aa0.8.inst.cfg b/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
index 8f97e448b0..59b057186e 100644
--- a/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
+++ b/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
@@ -62,5 +62,6 @@ switch_extruder_prime_speed = 20
 switch_extruder_retraction_amount = 16.5
 top_bottom_thickness = 1.4
 wall_0_inset = 0
+wall_line_width_0 = =wall_line_width
 wall_line_width_x = =wall_line_width
 wall_thickness = 2
diff --git a/resources/variants/ultimaker3_extended_bb0.8.inst.cfg b/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
index 5bb17451c6..55ed280f36 100644
--- a/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
+++ b/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
@@ -86,5 +86,6 @@ switch_extruder_prime_speed = 15
 switch_extruder_retraction_amount = 12
 top_bottom_thickness = 1
 wall_0_inset = 0
+wall_line_width_0 = =wall_line_width
 wall_line_width_x = =wall_line_width
 wall_thickness = 1