diff --git a/src/main/resources/assets/littlechasiu/ctm/static/assets/js/ctm.layer-manager.js b/src/main/resources/assets/littlechasiu/ctm/static/assets/js/ctm.layer-manager.js
index f46853f..6db6fae 100644
--- a/src/main/resources/assets/littlechasiu/ctm/static/assets/js/ctm.layer-manager.js
+++ b/src/main/resources/assets/littlechasiu/ctm/static/assets/js/ctm.layer-manager.js
@@ -95,7 +95,7 @@ class LayerManager {
   switchDimensions(from, to) {
     this._hideDimension(from)
     this._showDimension(to)
-    this.dimensionLayers[dim].addTo(map)
+    this.dimensionLayers[to].addTo(map)
   }
 
   _onDimensionChange({ layer }) {