diff --git a/package.json b/package.json
index 003f0d4..f089932 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "datadog",
     "DogStatsD"
   ],
-  "version": "1.0.0",
+  "version": "1.1.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/ysa23/metrics-reporter"
diff --git a/src/space.d.ts b/src/space.d.ts
index e63bd8f..6d43098 100644
--- a/src/space.d.ts
+++ b/src/space.d.ts
@@ -14,7 +14,7 @@ export declare class Space {
 
   value(val: number) : void;
   increment(val?: number): void;
-  meter: <T>(func: () => T) => T;
+  meter: <T, Args extends any[]>(func: (...args:Args) => T) => (...args: Args) => T;
 
   space: (nextKey: string, nextTags?: Tags) => Space;
 }