diff --git a/src/control/Control.LayerSwitcher.js b/src/control/Control.LayerSwitcher.js
index <HASH>..<HASH> 100644
--- a/src/control/Control.LayerSwitcher.js
+++ b/src/control/Control.LayerSwitcher.js
@@ -156,6 +156,7 @@ class LayerSwitcher extends Control {
                     const baseLayer = baseLayers[i];
                     baseLayer[baseLayer === layer ? 'show' : 'hide']();
                 }
+                map._fireEvent('setbaselayer');
             } else {
                 layer[e.target.checked ? 'show' : 'hide']();
             }
Update overviewControl if base layer has changed. (#<I>)