diff --git a/include/version.php b/include/version.php
index c58dc3a19..460c189d6 100644
--- a/include/version.php
+++ b/include/version.php
@@ -5,9 +5,9 @@
 		date_default_timezone_set('UTC');
 		$root_dir = dirname(dirname(__FILE__));
 
-		if (is_dir("$root_dir/.git") && file_exists("$root_dir/.git/ORIG_HEAD")) {
+		if (is_dir("$root_dir/.git") && file_exists("$root_dir/.git/refs/heads/master")) {
 
-			$suffix = substr(trim(file_get_contents("$root_dir/.git/ORIG_HEAD")), 0, 7);
+			$suffix = substr(trim(file_get_contents("$root_dir/.git/refs/heads/master")), 0, 7);
 
 			return VERSION_STATIC . ".$suffix";
 		} else {