diff --git a/bootstrap.php b/bootstrap.php
index 404e5433..b5b4bbec 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -126,12 +126,15 @@ return (function() {
     require __DIR__ . "/vendor/autoload.php";
     
     setlocale(LC_TIME, "POSIX");
+    
+    if(empty($_SERVER["REQUEST_SCHEME"]))
+        $_SERVER["REQUEST_SCHEME"] = empty($_SERVER["HTTPS"]) ? "HTTP" : "HTTPS";
 
     $showCommitHash = true; # plz remove when release
     if(is_dir($gitDir = OPENVK_ROOT . "/.git") && $showCommitHash)
         $ver = trim(`git --git-dir="$gitDir" log --pretty="%h" -n1 HEAD` ?? "Unknown version") . "-nightly";
     else
-	$ver = "Build 15";
+        $ver = "Build 15";
 
     define("OPENVK_VERSION", "Altair Preview ($ver)", false);
     define("OPENVK_DEFAULT_PER_PAGE", 10, false);