diff --git a/shared/src/class-main.php b/shared/src/class-main.php
index 93f0446..1facb31 100755
--- a/shared/src/class-main.php
+++ b/shared/src/class-main.php
@@ -72,7 +72,7 @@
 
 // Start I/O layers
 $encoding= get_cfg_var('encoding');
-iconv_set_encoding('internal_encoding', \xp::ENCODING);
+PHP_VERSION < '5.6' && iconv_set_encoding('internal_encoding', \xp::ENCODING);
 array_shift($_SERVER['argv']);
 array_shift($argv);
 if ($encoding) {