diff --git a/filesystem/shell b/filesystem/shell
index 7b8bb7013e1..b4bf42acd47 100644
--- a/filesystem/shell
+++ b/filesystem/shell
@@ -8,7 +8,7 @@ if [[ -z "${1}" || "${1}" =~ ^(--help|-h)$ ]]; then tee <<done
     Copyright (C) 2016 Renato Silva
     Licensed under public domain
 
-Usage: source $(basename "${0}") mingw32|mingw64|msys
+Usage: source $(basename "${0}") mingw32|mingw64|ucrt64|clang64|msys
 
     Switch between shells without restarting MSYS2. This is done by setting the
     MSYSTEM variable and sourcing /etc/profile. For interactive shells,