diff --git a/build b/build
index 8a0ba181..26b73d16 100755
--- a/build
+++ b/build
@@ -97,11 +97,14 @@ function rcopy(string $src, string $dst) {
 //Initialize page
 require_once __DIR__."/system/system.php";
 
+//Get the build configuration
+if(!isset($_SERVER['argv'][1]))
+	exit("Usage: ./build [configuration]");
 
 //Defines some variables
 $output = __DIR__."/output/";
 $debug_conf = "dev";
-$release_conf = "build";
+$release_conf = $_SERVER['argv'][1];
 
 
 
@@ -187,7 +190,7 @@ if(isset($_SERVER["REDIRECT_URL"])){
         exit();
     }
 } ?>';
-$page_src .= load_page("build");
+$page_src .= load_page($release_conf);
 file_put_contents($output."index.php", $page_src);
 
 // Add .htaccess file
diff --git a/system/config/build.config.php b/system/config/offline.config.php
similarity index 95%
rename from system/config/build.config.php
rename to system/config/offline.config.php
index 41ddf1cd..eddbeec8 100644
--- a/system/config/build.config.php
+++ b/system/config/offline.config.php
@@ -1,11 +1,11 @@
 <?php
 /**
- * PHP build config for the website
+ * PHP offline build config for the website
  *
  * @author Pierre HUBERT
  */
 
-class Build {
+class Offline {
 
 	/**
 	 * API access and credentials