diff --git a/xs/lib/Slic3r/XS.pm b/xs/lib/Slic3r/XS.pm
index bf549db8ff..a1f4a02b8c 100644
--- a/xs/lib/Slic3r/XS.pm
+++ b/xs/lib/Slic3r/XS.pm
@@ -119,7 +119,7 @@ sub new {
     my ($class, %args) = @_;
     
     my $self = $class->_new(
-        @args{qw(width spacing nozzle_diameter)},
+        @args{qw(width height nozzle_diameter)},
     );
     $self->set_bridge($args{bridge} // 0);
     return $self;