diff --git a/src/main.rs b/src/main.rs
index 2aba108..2357052 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -749,7 +749,7 @@ fn update(_app: &App, model: &mut GuiModel, update: Update) {
                         .add(egui::Checkbox::new(&mut enabled_bool,format!("{:?}", layer_nr)))
                         .changed()
                         {
-                            selected_config.layers_enabled &= mask;
+                            selected_config.layers_enabled ^= mask;
                             let layers_enabled = selected_config.layers_enabled;
                             if let Some(stream) = selected_laser_stream {
                                 stream.send(move |laser_model: &mut LaserModel|  {