diff --git a/database/migrations/2025_01_20_162907_add_old_harga_column_to_simulasibidmarhun.php b/database/migrations/2025_01_20_162907_add_old_harga_column_to_simulasibidmarhun.php
new file mode 100644
index 00000000..d37c8f3c
--- /dev/null
+++ b/database/migrations/2025_01_20_162907_add_old_harga_column_to_simulasibidmarhun.php
@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddOldHargaColumnToSimulasibidmarhun extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('simulasibidmarhun', function (Blueprint $table) {
+            $table->decimal('old_harga', $precision = 9, $scale = 2)->nullable();
+            //
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('simulasibidmarhun', function (Blueprint $table) {
+            $table->dropColumn('old_harga');
+            //
+        });
+    }
+}