diff --git a/types/leaflet.markercluster.layersupport/index.d.ts b/types/leaflet.markercluster.layersupport/index.d.ts
index aec703c67f..023142e752 100644
--- a/types/leaflet.markercluster.layersupport/index.d.ts
+++ b/types/leaflet.markercluster.layersupport/index.d.ts
@@ -24,10 +24,18 @@ declare global { namespace L {
             checkOut(layers: Layer | Layer[]): this;
         }
     }
+
+    interface MarkerClusterGroupLayerSupportOptions extends MarkerClusterGroupOptions {
+        /**
+         * Buffer single addLayer and removeLayer requests for efficiency.
+         */
+        singleAddRemoveBufferDuration: number;
+    }
+
     namespace markerClusterGroup {
         /**
          * Create a layer support marker cluster group, optionally given marker cluster group options.
          */
-        function layerSupport(options?: MarkerClusterGroupOptions): MarkerClusterGroup.LayerSupport;
+        function layerSupport(options?: MarkerClusterGroupLayerSupportOptions): MarkerClusterGroup.LayerSupport;
     }
 } }
diff --git a/types/leaflet.markercluster.layersupport/leaflet.markercluster.layersupport-tests.ts b/types/leaflet.markercluster.layersupport/leaflet.markercluster.layersupport-tests.ts
index 1c9682bd77..7b7faf3222 100644
--- a/types/leaflet.markercluster.layersupport/leaflet.markercluster.layersupport-tests.ts
+++ b/types/leaflet.markercluster.layersupport/leaflet.markercluster.layersupport-tests.ts
@@ -3,7 +3,7 @@ import L = require("leaflet.markercluster.layersupport");
 const polylineOptions: L.PolylineOptions = {};
 const icon: L.Icon = L.icon({ iconUrl: 'foo' });
 
-let markerClusterGroupOptions: L.MarkerClusterGroupOptions = {};
+let markerClusterGroupOptions: L.MarkerClusterGroupLayerSupportOptions;
 markerClusterGroupOptions = {
     showCoverageOnHover: true,
     zoomToBoundsOnClick: false,
@@ -25,7 +25,8 @@ markerClusterGroupOptions = {
         return icon;
     },
     chunkedLoading: false,
-    chunkDelay: 100
+    chunkDelay: 100,
+    singleAddRemoveBufferDuration: 200,
 };
 
 markerClusterGroupOptions.iconCreateFunction = (cluster: L.MarkerCluster) => {