diff --git a/src/components/cluster.js b/src/components/cluster.js
index 0e443c9f3..9f5a44856 100644
--- a/src/components/cluster.js
+++ b/src/components/cluster.js
@@ -62,7 +62,11 @@ const props = {
   zoomOnClick: {
     type: Boolean,
     twoWay: false
-  }
+  },
+  clusterClass: {
+  	type: String,
+  	twoWay: false
+  },
 }
 
 const events = [