diff --git a/lib/Slic3r/GUI/Tab.pm b/lib/Slic3r/GUI/Tab.pm
index a744b4c47..8bb06c63d 100644
--- a/lib/Slic3r/GUI/Tab.pm
+++ b/lib/Slic3r/GUI/Tab.pm
@@ -914,7 +914,7 @@ sub _update {
         for qw(support_material_threshold support_material_pattern support_material_with_sheath
             support_material_spacing support_material_synchronize_layers support_material_angle
             support_material_interface_layers dont_support_bridges
-            support_material_extrusion_width support_material_contact_distance);
+            support_material_extrusion_width support_material_contact_distance support_material_xy_spacing);
     $self->get_field($_)->toggle($have_support_material && $have_support_interface)
         for qw(support_material_interface_spacing support_material_interface_extruder
             support_material_interface_speed support_material_interface_contact_loops);