diff --git a/src/app/services/graphite/gfunc.js b/src/app/services/graphite/gfunc.js
index 2d0d4675798..af186633ea2 100644
--- a/src/app/services/graphite/gfunc.js
+++ b/src/app/services/graphite/gfunc.js
@@ -241,6 +241,8 @@ function (_) {
     params: [
       { name: "node", type: "int", options: [0,1,2,3,4,5,6,7,8,9,10,12] },
       { name: "node", type: "int", options: [0,-1,-2,-3,-4,-5,-6,-7], optional: true },
+      { name: "node", type: "int", options: [0,-1,-2,-3,-4,-5,-6,-7], optional: true },
+      { name: "node", type: "int", options: [0,-1,-2,-3,-4,-5,-6,-7], optional: true },
     ],
     defaultParams: [3]
   });