diff --git a/README.md b/README.md
index 07fe303..cc59b1f 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 [![Build Status](https://travis-ci.com/h44z/wg-portal.svg?token=q4pSqaqT58Jzpxdx62xk&branch=master)](https://travis-ci.com/h44z/wg-portal)
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://opensource.org/licenses/MIT)
 ![GitHub last commit](https://img.shields.io/github/last-commit/h44z/wg-portal)
+[![Go Report Card](https://goreportcard.com/badge/github.com/h44z/wg-portal)](https://goreportcard.com/report/github.com/h44z/wg-portal)
 ![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/h44z/wg-portal)
 ![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/h44z/wg-portal)
 [![Docker Pulls](https://img.shields.io/docker/pulls/h44z/wg-portal.svg)](https://hub.docker.com/r/h44z/wg-portal/)
@@ -27,6 +28,7 @@ It also supports LDAP (Active Directory or OpenLDAP) as authentication provider.
  * Dockerized
  * Responsive template
  * One single binary
+ * Can be used with existing WireGuard setups
  
 ![Screenshot](screenshot.png)
 
diff --git a/internal/authentication/providers/password/provider.go b/internal/authentication/providers/password/provider.go
index ca63ee5..549d5bd 100644
--- a/internal/authentication/providers/password/provider.go
+++ b/internal/authentication/providers/password/provider.go
@@ -59,7 +59,7 @@ func (provider Provider) Login(ctx *authentication.AuthContext) (string, error)
 		return "", errors.New("empty username or password")
 	}
 
-	// Authenticate agains the users database
+	// Authenticate against the users database
 	user := users.User{}
 	provider.db.Where("email = ?", username).First(&user)
 
diff --git a/internal/users/manager.go b/internal/users/manager.go
index c01a35e..1c06154 100644
--- a/internal/users/manager.go
+++ b/internal/users/manager.go
@@ -75,6 +75,15 @@ func NewManager(cfg *Config) (*Manager, error) {
 		return nil, errors.Wrapf(err, "failed to setup user database %s", cfg.Database)
 	}
 
+	// check if old user table exists (from version <= 1.0.2), if so rename it to peers.
+	if m.db.Migrator().HasTable("users") && !m.db.Migrator().HasTable("peers") {
+		if err := m.db.Migrator().RenameTable("users", "peers"); err != nil {
+			return nil, errors.Wrapf(err, "failed to migrate old database structure")
+		} else {
+			logrus.Infof("upgraded database format from version v1.0.2")
+		}
+	}
+
 	return m, m.MigrateUserDB()
 }