diff --git a/resources/functions.php b/resources/functions.php
index 9ff465730b..50d8cb2042 100644
--- a/resources/functions.php
+++ b/resources/functions.php
@@ -104,17 +104,14 @@
 	if (!function_exists('uuid')) {
 		function uuid() {
 			$uuid = null;
-			$which_uuidgen = shell_exec("which uuidgen");
-			if (strlen($which_uuidgen) > 0) {
-				if (PHP_OS === 'FreeBSD') {
-					$uuid = trim(shell_exec("uuidgen"));
-				}
-				if (PHP_OS === 'Linux') {
-					$uuid = trim(shell_exec("uuidgen -r"));
-				}
-				if (!is_uuid($uuid)) {
-					$uuid = trim(shell_exec("uuidgen"));
-				}
+			if (PHP_OS === 'FreeBSD') {
+				$uuid = trim(shell_exec("uuidgen"));
+			}
+			if (PHP_OS === 'Linux') {
+				$uuid = trim(shell_exec("uuidgen -r"));
+			}
+			if (!is_uuid($uuid)) {
+				$uuid = trim(shell_exec("uuidgen"));
 			}
 			if (!is_uuid($uuid) && PHP_OS === 'Linux') {
 				$uuid = trim(file_get_contents('/proc/sys/kernel/random/uuid'));