diff --git a/lib/Slic3r/GUI/Plater/2D.pm b/lib/Slic3r/GUI/Plater/2D.pm
index 5f85aa746..b3514c491 100644
--- a/lib/Slic3r/GUI/Plater/2D.pm
+++ b/lib/Slic3r/GUI/Plater/2D.pm
@@ -183,9 +183,11 @@ sub mouse_event {
     my $point = $self->point_to_model_units([ $pos->x, $pos->y ]);  #]]
     if ($event->ButtonDown) {
         $self->{on_select_object}->(undef);
-        OBJECTS: for my $obj_idx (0 .. $#{$self->{objects}}) {
+        # traverse objects and instances in reverse order, so that if they're overlapping
+        # we get the one that gets drawn last, thus on top (as user expects that to move)
+        OBJECTS: for my $obj_idx (reverse 0 .. $#{$self->{objects}}) {
             my $object = $self->{objects}->[$obj_idx];
-            for my $instance_idx (0 .. $#{ $object->instance_thumbnails }) {
+            for my $instance_idx (reverse 0 .. $#{ $object->instance_thumbnails }) {
                 my $thumbnail = $object->instance_thumbnails->[$instance_idx];
                 if (defined first { $_->contour->contains_point($point) } @$thumbnail) {
                     $self->{on_select_object}->($obj_idx);