diff --git a/src/Middleware/InitializeTenancy.php b/src/Middleware/InitializeTenancy.php
index 4303ab39..3bc383ba 100644
--- a/src/Middleware/InitializeTenancy.php
+++ b/src/Middleware/InitializeTenancy.php
@@ -29,7 +29,7 @@ class InitializeTenancy
     public function handle($request, Closure $next)
     {
         try {
-            tenancy()->init();
+            tenancy()->init($request->getHost());
         } catch (TenantCouldNotBeIdentifiedException $e) {
             ($this->onFail)($e);
         }
diff --git a/src/TenantManager.php b/src/TenantManager.php
index 669c6468..efe8644e 100644
--- a/src/TenantManager.php
+++ b/src/TenantManager.php
@@ -130,7 +130,7 @@ class TenantManager
     /**
      * Find tenant by domain & initialize tenancy.
      *
-     * @param string $domain
+     * @param string|null $domain
      * @return self
      */
     public function init(string $domain = null): self