diff --git a/lib/base.php b/lib/base.php
index 880645ff79..5b6ed9bcb1 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -271,6 +271,8 @@ if(!function_exists('get_temp_dir')) {
 			unlink($temp);
 			return dirname($temp);
 		}
+		if( $temp=sys_get_temp_dir())    return $temp;
+		
 		return null;
 	}
 }