diff --git a/src/MarkerClusterGroup.js b/src/MarkerClusterGroup.js
index 885ec44f6..c559b5329 100644
--- a/src/MarkerClusterGroup.js
+++ b/src/MarkerClusterGroup.js
@@ -701,9 +701,9 @@ L.MarkerClusterGroup = L.FeatureGroup.extend({
 		//If we just set maxClusterRadius to a single number, we need to create
 		//a simple function to return that number. Otherwise, we just have to
 		//use the function we've passed in.
-		if(typeof radius == "number") {
-			radiusFunction = function(){ return radius };
-		} else if(typeof radius == "function") {
+		if (typeof radius === "number") {
+			radiusFunction = function () { return radius; };
+		} else if (typeof radius === "function") {
 			radiusFunction = radius;
 		}