diff --git a/BUILDING.md b/BUILDING.md
index 1ecdc5abb17adc..3f95f32d72d9b6 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -433,3 +433,14 @@ To make `./myCustomModule.js` available via `require('myCustomModule')`.
 ```console
 > .\vcbuild link-module './myCustomModule.js'
 ```
+
+## Note for downstream distributors of Node.js
+
+The Node.js ecosystem is reliant on ABI compatibility within a major
+release. To maintain ABI compatibility it is required that production
+builds of Node.js will be built against the same version of dependencies as the
+project vendors. If Node.js is to be built against a different version of a
+dependency please create a custom `NODE_MODULE_VERSION` to ensure ecosystem
+compatibility. Please consult with the TSC by opening an issue at
+https://github.com/nodejs/tsc/issues if you decide to create a custom
+`NODE_MODULE_VERSION` so we can avoid duplication in the ecosystem.