diff --git a/lib/Slic3r/Layer.pm b/lib/Slic3r/Layer.pm
index ac6d8d290a..9803ce2b53 100644
--- a/lib/Slic3r/Layer.pm
+++ b/lib/Slic3r/Layer.pm
@@ -59,6 +59,7 @@ sub upper_layer_slices {
     
     my $upper_layer = $self->object->layers->[ $self->id + 1 ] or return [];
     return $upper_layer->slices;
+}
 
 sub region {
     my $self = shift;