diff --git a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
index 8877d2a25d9d..7a68bb5e3e3e 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
@@ -2891,7 +2891,7 @@ describe('ReactDOMFizzServer', () => {
       </div>,
     );
 
-    // the client app is rendered with an intentionally incorrect text. The still Suspended component causes
+    // The client app is rendered with an intentionally incorrect text. The still Suspended component causes
     // hydration to fail silently (allowing for cache warming but otherwise skipping this boundary) until it
     // resolves.
     const [ClientApp, clientResolve] = makeApp();
diff --git a/packages/react-reconciler/src/ReactFiberHydrationContext.new.js b/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
index bfc14d5b4ffb..e0e592d32790 100644
--- a/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
+++ b/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
@@ -81,8 +81,8 @@ let hydrationParentFiber: null | Fiber = null;
 let nextHydratableInstance: null | HydratableInstance = null;
 let isHydrating: boolean = false;
 
-// this flag allows for warning supression when we expect there to be mismatches due to
-// earlier mismatches or a suspended fiber.
+// This flag allows for warning supression when we expect there to be mismatches
+// due to earlier mismatches or a suspended fiber.
 let didSuspendOrErrorDEV: boolean = false;
 
 // Hydration errors that were thrown inside this boundary
diff --git a/packages/react-reconciler/src/ReactFiberHydrationContext.old.js b/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
index 7a9c67d9f97d..a4fd5c93e22e 100644
--- a/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
+++ b/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
@@ -81,8 +81,8 @@ let hydrationParentFiber: null | Fiber = null;
 let nextHydratableInstance: null | HydratableInstance = null;
 let isHydrating: boolean = false;
 
-// this flag allows for warning supression when we expect there to be mismatches due to
-// earlier mismatches or a suspended fiber.
+// This flag allows for warning supression when we expect there to be mismatches
+// due to earlier mismatches or a suspended fiber.
 let didSuspendOrErrorDEV: boolean = false;
 
 // Hydration errors that were thrown inside this boundary