diff --git a/src/Models/Component.php b/src/Models/Component.php
index 13cc69f9..eabd4668 100644
--- a/src/Models/Component.php
+++ b/src/Models/Component.php
@@ -57,7 +57,7 @@ class Component extends Model implements TransformableInterface
     /**
      * List of attributes that have default values.
      *
-     * @var array
+     * @var mixed[]
      */
     protected $attributes = [
         'order'       => 0,
diff --git a/src/Models/Metric.php b/src/Models/Metric.php
index 0efb66c5..b6d2247f 100644
--- a/src/Models/Metric.php
+++ b/src/Models/Metric.php
@@ -24,10 +24,12 @@ class Metric extends Model implements TransformableInterface
     /**
      * The model's attributes.
      *
-     * @var array
+     * @var string[]
      */
     protected $attributes = [
+        'name'          => '',
         'default_value' => 0,
+        'display_chart' => 1,
     ];
 
     /**
diff --git a/src/Models/MetricPoint.php b/src/Models/MetricPoint.php
index 35340183..beedbe1e 100644
--- a/src/Models/MetricPoint.php
+++ b/src/Models/MetricPoint.php
@@ -19,7 +19,7 @@ class MetricPoint extends Model
     /**
      * The attributes that are mass assignable.
      *
-     * @var array
+     * @var string[]
      */
     protected $fillable = ['metric_id', 'value'];