diff --git a/index.js b/index.js
index dce9d7f..35c08f9 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,6 @@
 const radio = require('radio-stream')
 const request = require('request')
 const irc = require('irc-upd')
-const Db = require('./libs/Db')
 const models = require('./models').models
 const Help = require('./libs/Help')
 const ArtistSong = require('./libs/ArtistSong')
@@ -11,7 +10,6 @@ const List = require('./libs/List')
 const allowedCommands = ['!artist', '!song', '!stats', '!when', '!help', '!notifications', '!list']
 
 // Init des librairies
-const db = new Db(models)
 const artistSong = new ArtistSong(models)
 const when = new When(models)
 const stats = new Statistics(models)
@@ -44,7 +42,7 @@ const checkCurrentSong = () => {
   bot.say(process.env.IRC_CHANNEL, `${process.env.RADIO_ALIAS} : ${currentSong.artist} - ${currentSong.title}`)
 
   // Save song for history
-  db.saveSong({
+  artistSong.saveCurrent({
     radio: process.env.RADIO_ALIAS,
     artist: currentSong.artist,
     title: currentSong.title
diff --git a/libs/ArtistSong.js b/libs/ArtistSong.js
index e49fa5c..aec5703 100644
--- a/libs/ArtistSong.js
+++ b/libs/ArtistSong.js
@@ -5,6 +5,34 @@ class ArtistSong {
     this.models = models
   }
 
+  /**
+   * Fonction sauvegardant en historique le morceau en cours de lecture
+   * @param  {Object} value
+   */
+  saveCurrent (value) {
+    // Find if previous song was the same (on bot reload)
+    this.models.Histories
+      .find({})
+      .sort({
+        createdAt: 'desc'
+      })
+      .limit(1)
+      .exec((err, last) => {
+        if (err ||
+        last.length === 0 ||
+        (last[0] !== undefined &&
+          last[0].artist !== value.artist &&
+          last[0].title !== value.title
+        )
+        ) {
+          console.log('Save song!', value)
+          // Previous song was different => save song!
+          const history = new this.models.Histories(value)
+          history.save()
+        }
+      })
+  }
+
   /**
    * Point d'entrée pour l'ajout suppression de favoris
    * @param  {String} type
diff --git a/libs/Db.js b/libs/Db.js
deleted file mode 100644
index e117cab..0000000
--- a/libs/Db.js
+++ /dev/null
@@ -1,36 +0,0 @@
-
-class Db {
-  constructor (models) {
-    this.models = models
-  }
-
-  /**
-   * Fonction sauvegardant en historique le morceau en cours de lecture
-   * @param  {Object} value
-   */
-  saveSong (value) {
-    // Find if previous song was the same (on bot reload)
-    this.models.Histories
-      .find({})
-      .sort({
-        createdAt: 'desc'
-      })
-      .limit(1)
-      .exec((err, last) => {
-        if (err ||
-        last.length === 0 ||
-        (last[0] !== undefined &&
-          last[0].artist !== value.artist &&
-          last[0].title !== value.title
-        )
-        ) {
-          console.log('Save song!', value)
-          // Previous song was different => save song!
-          const history = new this.models.Histories(value)
-          history.save()
-        }
-      })
-  }
-}
-
-module.exports = Db