diff --git a/src/MarkerClusterGroup.js b/src/MarkerClusterGroup.js
index 2e94aeb4f..e63fb445e 100644
--- a/src/MarkerClusterGroup.js
+++ b/src/MarkerClusterGroup.js
@@ -535,11 +535,11 @@ L.MarkerClusterGroup.include(!L.DomUtil.TRANSITION ? {
 		//Do nothing...
 	},
 	_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
-		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel);
+		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel - 1);
 		this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
 	},
 	_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
-		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel);
+		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, previousZoomLevel - 1);
 		this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
 	},
 	_animationAddLayer: function (layer, newCluster) {