diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1325f380818..12911074f1c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ vNext
 - Refactoring of filterSrv (Issue #428), thx @Tetha
 - New config for playlist feature. Set playlist_timespan to set default playlist interval (Issue #445) - thx @rmca
 - New InfluxDB function difference add to function dropdown (PR #455)
+- Added parameter to keepLastValue graphite function definition (default 100), Closes #459
 
 # Fixes
 - Filter option loading when having muliple nested filters now works better.
diff --git a/src/app/services/graphite/gfunc.js b/src/app/services/graphite/gfunc.js
index d21624fd1cc..e2d7b072e6d 100644
--- a/src/app/services/graphite/gfunc.js
+++ b/src/app/services/graphite/gfunc.js
@@ -231,6 +231,8 @@ function (_) {
   addFuncDef({
     name: 'keepLastValue',
     category: categories.Special,
+    params: [ { name: "n", type: "int", } ],
+    defaultParams: [100]
   });
 
   addFuncDef({