diff --git a/recipes/slack.php b/recipes/slack.php
index d379265..3d8449d 100644
--- a/recipes/slack.php
+++ b/recipes/slack.php
@@ -11,48 +11,43 @@
 task('deploy:slack', function () {
     global $php_errormsg;
 
-    $config = get('slack', []);
-
-    if (!isset($config['message'])) {
-        $config['message'] = "Deployment to `{{host}}` on *{{stage}}* was successful\n({{release_path}})";
-    }
+    $defaultConfig = [
+        'channel'  => '#general',
+        'icon'     => ':sunny:',
+        'username' => 'Deploy',
+        'message'  => "Deployment to `{{host}}` on *{{stage}}* was successful\n({{release_path}})",
+        'app'      => 'app-name',
+    ];
 
+    $config = array_merge($defaultConfig, (array) get('slack', []));
+    
     $server = \Deployer\Task\Context::get()->getServer()->getConfiguration();
-    $host = $server->getHost();
     $user = !$server->getUser() ? null : $server->getUser();
     $messagePlaceHolders = [
         '{{release_path}}' => env('release_path'),
-        '{{host}}' => env('server.host'),
-        '{{stage}}' => env('stages')[0],
-        '{{user}}' => $user,
-        '{{branch}}' => env('branch'),
-        '{{app_name}}' => isset($config['app']) ? ['app'] : 'app-name',
+        '{{host}}'         => env('server.host'),
+        '{{stage}}'        => env('stages')[0],
+        '{{user}}'         => $user,
+        '{{branch}}'       => env('branch'),
+        '{{app_name}}'     => isset($config['app']) ? $config['app'] : 'app-name',
     ];
     $config['message'] = strtr($config['message'], $messagePlaceHolders);
-
-    $defaultConfig = [
-        'channel' => '#general',
-        'icon' => ':sunny:',
-        'username' => 'Deploy',
-        'message' => "Deployment to `{{host}}` on *{{stage}}* was successful\n({{release_path}})",
-    ];
-
-    $config = array_merge($defaultConfig, $config);
+    
     if (!is_array($config) ||
         !isset($config['token']) ||
         !isset($config['team']) ||
         !isset($config['channel']))
     {
-        throw new \RuntimeException("Please configure new slack: set('slack', array('token' => 'xoxp...', 'team' => 'team', 'channel' => '#channel', 'messsage' => 'message to send'));");
+        throw new \RuntimeException("Please configure new slack: set('slack', ['token' => 'xoxp...', 'team' => 'team', 'channel' => '#channel', 'messsage' => 'message to send']);");
     }
 
     $urlParams = [
-        'channel' => $config['channel'],
-        'token' => $config['token'],
-        'text' => $config['message'],
-        'username' => $config['username'],
+        'channel'    => $config['channel'],
+        'token'      => $config['token'],
+        'text'       => $config['message'],
+        'username'   => $config['username'],
         'icon_emoji' => $config['icon'],
-        'pretty' => true
+        'pretty'     => true
     ];
 
     if (isset($config['icon_url'])) {