diff --git a/lib/Slic3r/Surface.pm b/lib/Slic3r/Surface.pm index b18d2e467..06c887de3 100644 --- a/lib/Slic3r/Surface.pm +++ b/lib/Slic3r/Surface.pm @@ -28,7 +28,7 @@ sub new { my $self = [ map delete $args{$_}, qw(expolygon surface_type thickness thickness_layers bridge_angle extra_perimeters), ]; - $self->[S_THICKNESS_LAYERS] = 1; + $self->[S_THICKNESS_LAYERS] //= 1; bless $self, $class; $self;