diff --git a/src/Aviat/Ion/View/HttpView.php b/src/Aviat/Ion/View/HttpView.php
index b31b2d67..7ff97f01 100644
--- a/src/Aviat/Ion/View/HttpView.php
+++ b/src/Aviat/Ion/View/HttpView.php
@@ -55,7 +55,7 @@ class HttpView extends BaseView {
 	public function setStatusCode($code)
 	{
 		$this->response = $this->response->withStatus($code)
-			->withProtocolVersion(1.1);
+			->withProtocolVersion('1.1');
 		return $this;
 	}