diff --git a/lib/Slic3r/Print.pm b/lib/Slic3r/Print.pm
index 77ee41e0f..a581df4ed 100644
--- a/lib/Slic3r/Print.pm
+++ b/lib/Slic3r/Print.pm
@@ -70,6 +70,7 @@ sub _trigger_config {
         $self->config->set('fill_density', 0);
         $self->config->set('top_solid_layers', 0);
         $self->config->set('support_material', 0);
+        $self->config->set('support_material_enforce_layers', 0);
         $self->config->set('retract_layer_change', [0]);  # TODO: only apply this to the spiral layers
     }
 }