diff --git a/docs/cmake/manual/module/external/ArmPreprocessSource.rst b/docs/cmake/manual/module/external/ArmPreprocessSource.rst
new file mode 100644
index 0000000..c95c2ba
--- /dev/null
+++ b/docs/cmake/manual/module/external/ArmPreprocessSource.rst
@@ -0,0 +1,5 @@
+.. cmake-module:: ../../../../../cmake/Modules/ArmPreprocessSource.cmake
+
+--------------
+
+*Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.*