diff --git a/app/Models/StickerMaster.php b/app/Models/StickerMaster.php
index d6e5c6f..0327b04 100644
--- a/app/Models/StickerMaster.php
+++ b/app/Models/StickerMaster.php
@@ -63,4 +63,9 @@ class StickerMaster extends Model
     {
         return $this->hasMany(InvoiceValidation::class, 'sticker_master_id');
     }
+
+    public function panelBoxValidations()
+    {
+        return $this->hasMany(PanelBoxValidation::class, 'sticker_master_id');
+    }
 }