diff --git a/projects/common-map/src/fm-map/reducers/map.reducer.ts b/projects/common-map/src/fm-map/reducers/map.reducer.ts
index 57d4914..68b6404 100644
--- a/projects/common-map/src/fm-map/reducers/map.reducer.ts
+++ b/projects/common-map/src/fm-map/reducers/map.reducer.ts
@@ -316,6 +316,7 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
       let itemLayers = state.overlayLayers.slice(0);
       let itemLayer = new ItemLayer(a.item);
       itemLayer.layerIndex = a.layerIndex == -1 ? 0 : a.layerIndex;
+      itemLayers = itemLayers.filter(item => item.layerIndex !== itemLayer.layerIndex);
       itemLayers.push(itemLayer);
       return tassign(state, { overlayLayers: itemLayers, selectedOverlayLayer: itemLayer });
     }