diff --git a/service/service.go b/service/service.go
index 6d43c33..5c40c6e 100644
--- a/service/service.go
+++ b/service/service.go
@@ -1 +1,5 @@
 package service
+
+import "forge.capytal.company/capytalcode/project-comicverse/repository"
+
+var ErrNotFound = repository.ErrNotFound
diff --git a/service/user.go b/service/user.go
index ab0f1ea..3766a76 100644
--- a/service/user.go
+++ b/service/user.go
@@ -88,8 +88,7 @@ func (svc *User) Login(username, password string) (user model.User, err error) {
 }
 
 var (
-	ErrAlreadyExists     = errors.New("model already exists")
-	ErrNotFound          = repository.ErrNotFound
-	ErrPasswordTooLong   = bcrypt.ErrPasswordTooLong
-	ErrIncorrectPassword = bcrypt.ErrMismatchedHashAndPassword
+	ErrUsernameAlreadyExists = errors.New("service: username already exists")
+	ErrPasswordTooLong       = bcrypt.ErrPasswordTooLong
+	ErrIncorrectPassword     = bcrypt.ErrMismatchedHashAndPassword
 )