diff --git a/includes/db_connect.php b/includes/db_connect.php
index df9057e..37dc1d8 100644
--- a/includes/db_connect.php
+++ b/includes/db_connect.php
@@ -1,14 +1,10 @@
 <?php
-    //$host = 'server';
-    //$db   = 'haushaltsbuch';
     $host = getenv('POSTGRES_HOST');
     $db = getenv('POSTGRES_DB');
     $user = getenv('POSTGRES_APPUSER');
     $pass = getenv('POSTGRES_APPPASSWORD');
-    //$port = "5432";
     $port = getenv('POSTGRES_PORT');
 
-
     try {
         $dsn = "pgsql:host=$host;port=$port;dbname=$db;";
         $pdo = new PDO($dsn, $user, $pass, [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
diff --git a/index.php b/index.php
index c53830b..92ef3d7 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,6 @@
 <?php
     require_once __DIR__ . '/includes/db_connect.php';
+    $system = getenv('POSTGRES_SYSTEM') ?? 'test';
 
     $stmt = $pdo->query("SELECT k.id,
                                         k.bezeichnung,
@@ -38,6 +39,11 @@
 
 <body>
     <div class="header">
+        <?php 
+            if($system == 'test') {
+                echo '<h2 class="restguthaben">Testsystem</h2>';
+            }
+        ?>
         <h2 class="restguthaben">
             Restguthaben <?= htmlspecialchars($monat)?>: <?= htmlspecialchars($restguthaben ?? '0') ?> €
         </h2>
diff --git a/konto.php b/konto.php
index c383e43..35bf916 100644
--- a/konto.php
+++ b/konto.php
@@ -1,5 +1,6 @@
 <?php
     require_once __DIR__ . '/includes/db_connect.php';
+    $system = getenv('POSTGRES_SYSTEM') ?? 'test';
 
     $konto_id = $_GET['id'];
 
@@ -61,6 +62,11 @@
             id="konto_navigationLinks">
             Neue Kontobewegung
         </a>
+        <?php 
+            if($system == 'test') {
+                echo '<h2 class="restguthaben">Testsystem</h2>';
+            }
+        ?>
         <h2 class="kontoübersicht" id="h2_kontoübersicht">
             <?= htmlspecialchars($konto_bezeichnung) ?>: <?= htmlspecialchars(number_format($konto_kontostand, 2, ",", ".")) ?> €
         </h2>
