diff --git a/src/cpp/README.md b/src/cpp/README.md
index 91c5fadade8..643a1d3a812 100755
--- a/src/cpp/README.md
+++ b/src/cpp/README.md
@@ -11,9 +11,12 @@ Therefore, gRPC supports several major build systems, which should satisfy most
 
 ## Supported Platforms
 
-* Officially Supported: These platforms are officially supported. We test our
-  code on these platform and have automated continuous integration tests for
+* Officially Supported: These platforms are officially supported. We follow
+  [the OSS Foundational C++ Support Policy](https://opensource.google/documentation/policies/cplusplus-support)
+  to choose platforms to support.
+  We test our code on these platform and have automated continuous integration tests for
   them.
+  .
 
 * Best Effort: We do not have continous integration tests for these, but we are
   fairly confident that gRPC C++ would work on them. We will make our best