diff --git a/update_amda/makeTree.php b/update_amda/makeTree.php
index 77f8942..8143526 100644
--- a/update_amda/makeTree.php
+++ b/update_amda/makeTree.php
@@ -5,15 +5,14 @@
  */ 
  
    error_reporting(E_ERROR);
-   define("AMDA_SPASE_INTERFACE", getenv("AMDA_SPASE_INTERFACE")); 
 	
-	if ( AMDA_SPASE_INTERFACE == "" ) 
+	if (getenv("AMDA_SPASE_INTERFACE") === false) 
 		require_once("./config.php");
 	else
-		require_once(AMDA_SPASE_INTERFACE."/config.php");
-		
-	if (defined("DATAPATH") && file_exists(DATAPATH.'rank.json')) 
-		$cmpArr = json_decode(file_get_contents(DATAPATH.'rank.json'), true);
+		require_once(getenv("AMDA_SPASE_INTERFACE")."/config.php");
+
+	if (getenv("DATAPATH") !== false && file_exists(getenv("DATAPATH")."rank.json")) 
+		$cmpArr = json_decode(file_get_contents(getenv("DATAPATH")."rank.json"), true);
 	else 
 		$cmpArr = null;
                                
--
libgit2 0.21.2