diff --git a/app/Models/User.php b/app/Models/User.php
index 213bc53..85ab87d 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -99,7 +99,7 @@ class User extends Authenticatable implements MustVerifyEmail
         return Arr::get($this->options, 'locale') ?? request()->getPreferredLanguage($available_locales) ?? config('app.locale');
     }
 
-    public function setOption(mixed $key, string $value): self
+    public function setOption(mixed $key, ?string $value = null): self
     {
 
         $options = is_array($key) ? $key : [$key => $value];
diff --git a/tests/MultiCurrencyTest.php b/tests/MultiCurrencyTest.php
index 04a8f2b..2d7077e 100644
--- a/tests/MultiCurrencyTest.php
+++ b/tests/MultiCurrencyTest.php
@@ -572,6 +572,14 @@ class MultiCurrencyTest extends TestCase
             ->getPortfolioMetrics();
 
         $this->assertEqualsWithDelta($metrics->get('total_market_value'), $dailyChange->last()->total_market_value, 0.01);
+        //   expected 2773.034 Failed asserting that 2816.46 matches .
+
+        // "total_cost_basis" => 1771.476
+        // "total_gain_dollars" => 300.234
+
+        // +"total_cost_basis": 1765.431
+        // +"total_gain": 306.279
+
         $this->assertEqualsWithDelta($metrics->get('total_cost_basis'), $dailyChange->last()->total_cost_basis, 0.01);
         $this->assertEqualsWithDelta($metrics->get('realized_gain_dollars'), $dailyChange->last()->realized_gain_dollars, 0.01);
         $this->assertEqualsWithDelta($metrics->get('total_market_value') - $metrics->get('total_cost_basis'), $dailyChange->last()->total_gain, 0.01);