diff --git a/migrations/0000002_permissions.down.sql b/migrations/0000002_permissions.down.sql
new file mode 100644
index 0000000..902ac25
--- /dev/null
+++ b/migrations/0000002_permissions.down.sql
@@ -0,0 +1,6 @@
+DROP TABLE IF EXISTS user_to_group;
+DROP INDEX IF EXISTS groups_index;
+DROP TABLE IF EXISTS groups;
+ALTER TABLE users DROP COLUMN IF EXISTS permissions;
+DROP INDEX IF EXISTS users_index;
+DROP EXTENSION IF EXISTS hstore;
diff --git a/migrations/0000002_permissions.up.sql b/migrations/0000002_permissions.up.sql
new file mode 100644
index 0000000..5741236
--- /dev/null
+++ b/migrations/0000002_permissions.up.sql
@@ -0,0 +1,22 @@
+CREATE EXTENSION IF NOT EXISTS hstore;
+CREATE INDEX users_index ON users (
+    id,
+    username
+);
+ALTER TABLE users ADD COLUMN permissions hstore;
+CREATE TABLE groups (
+    id serial PRIMARY KEY,
+    groupname text UNIQUE NOT NULL,
+    permissions hstore
+);
+CREATE INDEX groups_index ON groups (
+    id,
+    groupname
+);
+CREATE TABLE user_to_group (
+    id_group INTEGER,
+    id_user INTEGER,
+    PRIMARY KEY (id_group, id_user),
+    FOREIGN KEY (id_group) REFERENCES groups (id),
+    FOREIGN KEY (id_user) REFERENCES users (id)
+);
diff --git a/wwwshop/dao/database/database.go b/wwwshop/dao/database/database.go
index 88ce42f..403a660 100644
--- a/wwwshop/dao/database/database.go
+++ b/wwwshop/dao/database/database.go
@@ -14,6 +14,9 @@ import (
 
 func DB() *sql.DB {
 	configuration, err := config.New()
+    if err != nil {
+        log.Fatal(err)
+    }
 	url_postgres, err := configuration.DB.GetURL()
     if err != nil {
         log.Fatal(err)