diff --git a/src/app/services/graphite/gfunc.js b/src/app/services/graphite/gfunc.js
index 090794a9363..aa8531a3c00 100644
--- a/src/app/services/graphite/gfunc.js
+++ b/src/app/services/graphite/gfunc.js
@@ -83,6 +83,18 @@ function (_) {
     defaultParams: [3]
   });
 
+  addFuncDef({
+    name: 'maxSeries',
+    shortName: 'max',
+    category: categories.Combine,
+  });
+
+  addFuncDef({
+    name: 'minSeries',
+    shortName: 'min',
+    category: categories.Combine,
+  });
+
   addFuncDef({
     name: 'averageSeriesWithWildcards',
     category: categories.Combine,
@@ -225,6 +237,13 @@ function (_) {
     defaultParams: [10]
   });
 
+  addFuncDef({
+    name: 'transformNull',
+    category: categories.Transform,
+    params: [ { name: "amount", type: "int", } ],
+    defaultParams: [0]
+  });
+
   addFuncDef({
     name: 'integral',
     category: categories.Transform,