diff --git a/object/token_oauth.go b/object/token_oauth.go
index 04da6e34..590ab5c9 100644
--- a/object/token_oauth.go
+++ b/object/token_oauth.go
@@ -332,6 +332,9 @@ func RefreshToken(grantType string, refreshToken string, scope string, clientId
 	if err != nil {
 		return nil, err
 	}
+	if user == nil {
+		return "", fmt.Errorf("The user: %s doesn't exist", util.GetId(application.Organization, token.User))
+	}
 
 	if user.IsForbidden {
 		return &TokenError{