diff --git a/app/Models/Log.php b/app/Models/Log.php
index 890299c..94f4f0c 100644
--- a/app/Models/Log.php
+++ b/app/Models/Log.php
@@ -47,6 +47,7 @@ class Log extends Model
                 $table->text('in_source');
                 $table->string('type', 20)->index();
                 $table->text('out_source')->nullable();
+                $table->string('coupon_no')->nullable();
                 $table->timestamps();
             });
         }