diff --git a/database/migrations/2018_07_02_104306_rename_booking_foreignkey_from_supplierbooking_table.php b/database/migrations/2018_07_02_104306_rename_booking_foreignkey_from_supplierbooking_table.php
index f3be6172..66df713b 100644
--- a/database/migrations/2018_07_02_104306_rename_booking_foreignkey_from_supplierbooking_table.php
+++ b/database/migrations/2018_07_02_104306_rename_booking_foreignkey_from_supplierbooking_table.php
@@ -17,7 +17,7 @@ class RenameBookingForeignkeyFromSupplierbookingTable extends Migration
         {
             $table->dropForeign(['book_id']);
             $table->dropColumn('book_id');
-            $table->integer('booking_id')->unsigned()->nullable;
+            $table->integer('booking_id')->unsigned()->nullable();
             $table->foreign('booking_id')->references('id')->on('bookings');
         });
     }