diff --git a/config.php-dist b/config.php-dist
index 1694059d5..4bcfc31ba 100644
--- a/config.php-dist
+++ b/config.php-dist
@@ -184,7 +184,10 @@
 	// Selectively gzip output to improve wire performance. This requires
 	// PHP Zlib extension on the server.
 
-	define('CONFIG_VERSION', 16);
+	define('PHP_EXECUTABLE', '/usr/bin/php');
+	// Path to PHP executable
+
+	define('CONFIG_VERSION', 17);
 	// Expected config version. Please update this option in config.php
 	// if necessary (after migrating all new options from this file).
 
diff --git a/sanity_check.php b/sanity_check.php
index 41fdf983a..383edab4c 100644
--- a/sanity_check.php
+++ b/sanity_check.php
@@ -1,7 +1,7 @@
 <?php
 	require_once "functions.php";
 
-	define('EXPECTED_CONFIG_VERSION', 16);
+	define('EXPECTED_CONFIG_VERSION', 17);
 	define('SCHEMA_VERSION', 37);
 
 	if (!file_exists("config.php")) {
diff --git a/update_daemon.php b/update_daemon.php
index 0e4efd38f..67a8781de 100644
--- a/update_daemon.php
+++ b/update_daemon.php
@@ -11,7 +11,6 @@
 	define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
 	define('SIMPLEPIE_CACHE_DIR',	'/var/tmp/simplepie-ttrss-cache-daemon');
 	define('DISABLE_SESSIONS', true);
-	define('PHP_EXECUTABLE', '/usr/bin/php');
 
 	require_once "version.php";
 
@@ -24,6 +23,10 @@
 	require_once "sanity_check.php";
 	require_once "config.php";
 
+	if (!defined('PHP_EXECUTABLE')) {
+		define('PHP_EXECUTABLE', '/usr/bin/php');
+	}
+
 	if (!ENABLE_UPDATE_DAEMON) {
 		die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
 	}