diff --git a/app/Http/Controllers/MarhunController.php b/app/Http/Controllers/MarhunController.php
index ebb28b8..8bc9cd0 100644
--- a/app/Http/Controllers/MarhunController.php
+++ b/app/Http/Controllers/MarhunController.php
@@ -91,9 +91,9 @@ class MarhunController extends Controller
             'n_marhun' => $nilai_marhun
         ];
 
-        // Remove keys berat_batu_permata if value is null
+        // Set value berat_batu_permata to null if value passed is null
         if($marhunToCreate['berat_batu_permata'] == '') {
-            unset($marhunToCreate['berat_batu_permata']);
+            $marhunToCreate['berat_batu_permata'] = null;
         };
 
         $cawangan = Cawangan::on('mysql7')->where('kodcaw','=',$kodcaw)->first();
@@ -175,9 +175,9 @@ class MarhunController extends Controller
             'n_marhun' => $nilai_marhun
         ];
 
-        // Remove keys berat_batu_permata if value is null
+        // Set value berat_batu_permata to null if value passed is null
         if($marhunToUpdate['berat_batu_permata'] == '') {
-            unset($marhunToUpdate['berat_batu_permata']);
+            $marhunToUpdate['berat_batu_permata'] = null;
         };
 
         $jemas = Marhun::on($cawangan['mysql'])->where([['recno','=',$request->recno],['norujukan','=',$norujukan]])->update($marhunToUpdate);