diff --git a/source/BuildsRenderer.php b/source/BuildsRenderer.php
index 43bc180..7794e2a 100644
--- a/source/BuildsRenderer.php
+++ b/source/BuildsRenderer.php
@@ -284,15 +284,17 @@ class BuildsRenderer {
                     stringContains($_SERVER['REQUEST_URI'], "bpy")) ?
       "/download/daily" : strtok($_SERVER['REQUEST_URI'], '?');
 
-    $env_id = getEnvId();
-
     $protocol = "https";
-    $host_id = getHostId();
 
+    $env_id = getEnvId();
     if (! in_array($env_id, array("UATEST", "PROD"))) {
       $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http");
     }
-    $uri = $protocol . "://$host_id" . "$request_uri";
+
+    // Use specific host provided for file downloads if present, otherwise serve
+    // files from the same domain as the website itself.
+    $download_host = getenv('DOWNLOAD_FILE_DOMAIN') ?: getHostId();
+    $uri = $protocol . "://$download_host" . "$request_uri";
 
     $escaped_file_name = htmlspecialchars($build->file_name);