diff --git a/src/Pecee/Http/Request.php b/src/Pecee/Http/Request.php
index a09956a..e9f9742 100644
--- a/src/Pecee/Http/Request.php
+++ b/src/Pecee/Http/Request.php
@@ -406,7 +406,7 @@ class Request
     public function setHost(?string $host): void
     {
         // Strip any potential ports from hostname
-        if (strpos($host, ':') !== false) {
+        if (strpos((string)$host, ':') !== false) {
             $host = strstr($host, strrchr($host, ':'), true);
         }