From d11c28621d19a2f8c85b847ece39c1f865febe75 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Machulda?= <ondrej.machulda@gmail.com>
Date: Mon, 7 May 2018 02:33:55 +0200
Subject: [PATCH] Force proper arg separator to avoid assembling broken URLs

---
 CHANGELOG.md                      | 1 +
 src/Authentication/QueryParam.php | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cf58e1..cb05a23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 ### Fixed
 
 - Fix CurlCommandFormatter for binary request payloads
+- Fix QueryParam authentication to assemble proper URL regardless of PHP `arg_separator.output` directive
 
 
 ## 1.6.0 - 2017-07-05
diff --git a/src/Authentication/QueryParam.php b/src/Authentication/QueryParam.php
index 14b58ff..650cac7 100644
--- a/src/Authentication/QueryParam.php
+++ b/src/Authentication/QueryParam.php
@@ -41,7 +41,7 @@ public function authenticate(RequestInterface $request)
 
         $params = array_merge($params, $this->params);
 
-        $query = http_build_query($params);
+        $query = http_build_query($params, null, '&');
 
         $uri = $uri->withQuery($query);