diff --git a/README.md b/README.md
index 6629c31..de40b15 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,9 @@ class Post extends Model
 
 This trait allows you to generate a slug from a string. When you create a new model, the slug will be generated automatically. If you change the title, the slug will also be updated. See [bootSluggable()](src/Traits/Sluggable.php#L10) method for more details.
 
+> **Note**
+> Field name is `parent_id` by default. You can change it in the config file.
+
 > **Note**
 > Field names are `slug` and `title` by default. You can change it in the config file.
 
diff --git a/src/Traits/ParentChild.php b/src/Traits/ParentChild.php
index 2357a47..0faf272 100644
--- a/src/Traits/ParentChild.php
+++ b/src/Traits/ParentChild.php
@@ -2,6 +2,7 @@
 
 namespace LaravelReady\ModelSupport\Traits;
 
+use Illuminate\Support\Facades\Config;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
@@ -9,12 +10,12 @@ trait ParentChild
 {
     public function parent(): BelongsTo
     {
-        return $this->belongsTo(self::class, 'parent_id');
+        return $this->belongsTo(self::class, Config::get('has_active.parent_id', 'parent_id'));
     }
 
     public function children(): HasMany
     {
-        return $this->hasMany(self::class, 'parent_id');
+        return $this->hasMany(self::class, Config::get('has_active.parent_id', 'parent_id'));
     }
 
     public function recursiveParent(): mixed