diff --git a/api/get_music_folders.go b/api/get_music_folders.go
index 2eba5c18a..ee9e101f4 100644
--- a/api/get_music_folders.go
+++ b/api/get_music_folders.go
@@ -3,14 +3,22 @@ package api
 import (
 	"github.com/astaxie/beego"
 	"github.com/deluan/gosonic/api/responses"
-	"github.com/deluan/gosonic/persistence"
+	"github.com/deluan/gosonic/domain"
+	"github.com/karlkfi/inject"
+	"github.com/deluan/gosonic/utils"
 )
 
-type GetMusicFoldersController struct{ beego.Controller }
+type GetMusicFoldersController struct {
+	beego.Controller
+	repo domain.MediaFolderRepository
+}
+
+func (c *GetMusicFoldersController) Prepare() {
+	inject.ExtractAssignable(utils.Graph, &c.repo)
+}
 
 func (c *GetMusicFoldersController) Get() {
-	repository := persistence.NewMediaFolderRepository()
-	mediaFolderList, _ := repository.GetAll()
+	mediaFolderList, _ := c.repo.GetAll()
 	folders := make([]responses.MusicFolder, len(mediaFolderList))
 	for i, f := range mediaFolderList {
 		folders[i].Id = f.Id
diff --git a/conf/inject_definitions.go b/conf/inject_definitions.go
index 69fb97a2a..1caa28a4a 100644
--- a/conf/inject_definitions.go
+++ b/conf/inject_definitions.go
@@ -9,4 +9,5 @@ import (
 func init () {
 	utils.DefineSingleton(new(domain.ArtistIndexRepository), persistence.NewArtistIndexRepository)
 	utils.DefineSingleton(new(domain.PropertyRepository), persistence.NewPropertyRepository)
+	utils.DefineSingleton(new(domain.MediaFolderRepository), persistence.NewMediaFolderRepository)
 }