diff --git a/database/migrations/2020_16_08_175446_set_cell_value_column_to_nullable.php b/database/migrations/2020_16_08_175446_set_cell_value_column_to_nullable.php
index 37db3e0..3a4774f 100755
--- a/database/migrations/2020_16_08_175446_set_cell_value_column_to_nullable.php
+++ b/database/migrations/2020_16_08_175446_set_cell_value_column_to_nullable.php
@@ -25,6 +25,7 @@ public function up()
      */
     public function down()
     {
+        \BristolSU\Module\DataEntry\Models\Cell::whereNull('value')->update(['value' => '']);
         Schema::table('data_entry_cell', function(Blueprint $table) {
             $table->text('value')->nullable(false)->change();
         });