diff --git a/package.json b/package.json
index ff3d2e0..87251ae 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,6 @@
     "typescript": "^4.1.3"
   },
   "dependencies": {
-    "rss-parser": "3.11.0"
+    "rss-parser": "^3.11.0"
   }
 }
diff --git a/src/Models/ListenerRSSInfos.ts b/src/Models/ListenerRSSInfos.ts
deleted file mode 100644
index 0da2390..0000000
--- a/src/Models/ListenerRSSInfos.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-export interface ListenerRSSInfos {
-  readonly address: string; // feed's address
-  readonly timeloop?: number; // update time RSS feed
-  readonly customfields?: { [key: string]: string | string[] }; // rss fields custom
-  readonly lastEntriesLinks?: string[]; // links from lastentries
-}
diff --git a/src/index.ts b/src/index.ts
index 4046865..f28ed04 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,2 +1 @@
 export { ListenerRss } from "./listener-rss";
-export { ListenerRSSInfos } from "./Models/ListenerRSSInfos";
diff --git a/src/listener-rss.ts b/src/listener-rss.ts
index 43e217d..7e4ffbc 100644
--- a/src/listener-rss.ts
+++ b/src/listener-rss.ts
@@ -1,15 +1,23 @@
 import Parser from "rss-parser";
-import { ListenerRSSInfos } from "./Models/ListenerRSSInfos";
 import EventEmitter from "events";
 
 const DEFAULT_TIMELOOP: number = 5 * 60; // default timeloop is 5 min
 
+namespace ListenerRss {
+  export type Config = {
+    address: string; // feed's address
+    timeloop?: number; // update time RSS feed
+    customfields?: { [key: string]: string | string[] }; // rss fields custom
+    lastEntriesLinks?: string[]; // links from lastentries
+  };
+}
+
 /**
  * Emit 'update' when he's making a fetch during the start fun
  * Emit 'error' when the fetch has an issue
  * Emit 'newEntries' when the fetch has new entris
  */
-export class ListenerRss extends EventEmitter {
+class ListenerRss extends EventEmitter {
   address: string = "";
   timeloop: number = DEFAULT_TIMELOOP; // time in seconds
   customfields?: { [key: string]: string[] | string };
@@ -23,7 +31,7 @@ export class ListenerRss extends EventEmitter {
    * @brief constructor
    * @param config ListenerRSSInfos interface who contains the ListenerInfos
    */
-  constructor(config: ListenerRSSInfos) {
+  constructor(config: ListenerRss.Config) {
     super();
 
     this.address = config.address;
@@ -107,7 +115,7 @@ export class ListenerRss extends EventEmitter {
    *  @brief parse the datas inti a ListenerRSSInfos object
    *  @return return a ListenerRSSInfos object
    */
-  getProperty(): ListenerRSSInfos {
+  getProperty(): ListenerRss.Config {
     return {
       address: this.address,
       customfields: this.customfields,
@@ -116,3 +124,5 @@ export class ListenerRss extends EventEmitter {
     };
   }
 }
+
+export { ListenerRss };
diff --git a/tests/index-spec.ts b/tests/index-spec.ts
index 8ddef98..9f66760 100644
--- a/tests/index-spec.ts
+++ b/tests/index-spec.ts
@@ -2,10 +2,9 @@
 import * as Parser from "rss-parser";
 
 // tested class
-import {
-  ListenerRSSInfos as ListenerRRSInfo,
-  ListenerRss as Listeners,
-} from "../";
+import { ListenerRss } from "../";
+
+const ListenerRSSInfo = ListenerRss.Config;
 
 // Unit test
 import assert from "assert";