diff --git a/packages/react-dom/src/server/ReactPartialRenderer.js b/packages/react-dom/src/server/ReactPartialRenderer.js
index b7742df2f6b..4591f2ad2d1 100644
--- a/packages/react-dom/src/server/ReactPartialRenderer.js
+++ b/packages/react-dom/src/server/ReactPartialRenderer.js
@@ -309,6 +309,10 @@ function processContext(type, context) {
 }
 
 const STYLE = 'style';
+
+/**
+ * @nocollapse
+ */
 const RESERVED_PROPS = {
   children: null,
   dangerouslySetInnerHTML: null,
diff --git a/packages/react/src/ReactElement.js b/packages/react/src/ReactElement.js
index 0594412fa78..19994384fce 100644
--- a/packages/react/src/ReactElement.js
+++ b/packages/react/src/ReactElement.js
@@ -12,6 +12,9 @@ import ReactCurrentOwner from './ReactCurrentOwner';
 
 const hasOwnProperty = Object.prototype.hasOwnProperty;
 
+/**
+ * @nocollapse
+ */
 const RESERVED_PROPS = {
   key: true,
   ref: true,