diff --git a/README.md b/README.md
index 6506de85..6f2e3977 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,8 @@ Open `app/Http/Kernel.php` and make the middleware top priority, so that it gets
 ```php
 protected $middlewarePriority = [
     \Stancl\Tenancy\Middleware\InitializeTenancy::class,
+    // ...
+];
 ```
 
 When a tenant route is visited, but the tenant can't be identified, an exception is thrown. If you want to change this behavior, to a redirect for example, add this to your `app/Providers/AppServiceProvider.php`'s `boot()` method.
diff --git a/src/Middleware/InitializeTenancy.php b/src/Middleware/InitializeTenancy.php
index cd6383a5..3c37360a 100644
--- a/src/Middleware/InitializeTenancy.php
+++ b/src/Middleware/InitializeTenancy.php
@@ -25,13 +25,7 @@ class InitializeTenancy
         try {
             tenancy()->init();
         } catch (\Exception $e) {
-            // Pass the exception to the onFail function if it takes any parameters.
-            $callback = $this->onFail;
-            if ((new \ReflectionFunction($callback))->getNumberOfParameters() > 0) {
-                $callback($e);
-            } else {
-                $callback();
-            }
+            ($this->onFail)($e);
         }
 
         return $next($request);