diff --git a/Modules/CMakeDependentOption.cmake b/Modules/CMakeDependentOption.cmake
index 3db05da920..0d840fcfe0 100644
--- a/Modules/CMakeDependentOption.cmake
+++ b/Modules/CMakeDependentOption.cmake
@@ -10,7 +10,7 @@ default values depend on specified conditions or other options.  This helps
 maintain a clean configuration interface by only displaying options that are
 relevant to the current settings.
 
-Load this module in a CMake project with:
+Load this module in CMake with:
 
 .. code-block:: cmake
 
@@ -82,6 +82,9 @@ This module provides the following command:
     The value assigned to a local variable named ``<variable>``, when
     ``<condition>`` evaluates to boolean false.
 
+  In CMake project mode, boolean cache variables are created as explained
+  above.  In CMake script mode, boolean variables are set instead.
+
 Examples
 ^^^^^^^^