diff --git a/src/Connection/Connection.php b/src/Connection/Connection.php
index 78bf446..473c618 100644
--- a/src/Connection/Connection.php
+++ b/src/Connection/Connection.php
@@ -6,6 +6,9 @@
 
 class Connection
 {
+    /**
+     * @param non-empty-string $address
+     */
     public function __construct(
         public readonly string $address,
     ) {