diff --git a/Help/dev/experimental.rst b/Help/dev/experimental.rst
index 7328d7b157..5bfbf8d491 100644
--- a/Help/dev/experimental.rst
+++ b/Help/dev/experimental.rst
@@ -18,7 +18,7 @@ C++20 Module APIs
 =================
 
 Variable: ``CMAKE_EXPERIMENTAL_CXX_MODULE_CMAKE_API``
-Value: ``bf70d4b0-9fb7-465c-9803-34014e70d112``
+Value: ``a816ed09-43d1-40e5-bc8c-1a2824ee194e``
 
 In order to support C++20 modules, there are a number of behaviors that have
 CMake APIs to provide the required features to build and export them from a