diff --git a/app/Models/Benefit.php b/app/Models/Benefit.php
index 4cdaebf8..9c789ff9 100644
--- a/app/Models/Benefit.php
+++ b/app/Models/Benefit.php
@@ -134,7 +134,7 @@ class Benefit extends Model
 
     public function setAreaLimitAttribute($value)
     {
-        $this->attributes['area_limit'] = $value ? $value : null;
+        $this->attributes['area_limit'] = empty($value) ? null : $value;
     }
 
     public function setPrePostTreatmentAttribute($value)