diff --git a/index.d.ts b/index.d.ts
index 5780dea..3d6551a 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,4 +1,5 @@
 /// <reference types="node" />
+/// <reference types="Long" />
 
 export namespace expectedVersion {
     const any: number;
@@ -6,6 +7,11 @@ export namespace expectedVersion {
     const emptyStream: number;
 }
 
+export interface Position {
+    readonly commitPosition: Long;
+    readonly preparePosition: Long;
+}
+
 export namespace positions {
     const start: Position;
     const end: Position;
diff --git a/package.json b/package.json
index e3756b6..de4e89a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eventstore-node",
-  "version": "0.0.25",
+  "version": "0.0.26",
   "description": "A port of the EventStore .Net ClientAPI to Node.js",
   "main": "index.js",
   "types": "index.d.ts",
@@ -40,6 +40,7 @@
   },
   "homepage": "https://github.com/nicdex/eventstore-node#readme",
   "dependencies": {
+    "@types/long": "^3.0.31",
     "@types/node": "^6.0.47",
     "long": "^3.2",
     "protobufjs": "^5.0",