diff --git a/packages/react-reconciler/src/ReactFiberHydrationContext.new.js b/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
index 7f1876f1062b..3886b35861a2 100644
--- a/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
+++ b/packages/react-reconciler/src/ReactFiberHydrationContext.new.js
@@ -87,7 +87,7 @@ 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.
-let didSuspendOrError: boolean = false;
+let didSuspendOrErrorDEV: boolean = false;
 
 // Hydration errors that were thrown inside this boundary
 let hydrationErrors: Array<mixed> | null = null;
@@ -104,7 +104,7 @@ function warnIfHydrating() {
 
 export function markDidThrowWhileHydratingDEV() {
   if (__DEV__) {
-    didSuspendOrError = true;
+    didSuspendOrErrorDEV = true;
   }
 }
 
@@ -120,7 +120,7 @@ function enterHydrationState(fiber: Fiber): boolean {
   hydrationParentFiber = fiber;
   isHydrating = true;
   hydrationErrors = null;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
   return true;
 }
 
@@ -138,7 +138,7 @@ function reenterHydrationStateFromDehydratedSuspenseInstance(
   hydrationParentFiber = fiber;
   isHydrating = true;
   hydrationErrors = null;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
   if (treeContext !== null) {
     restoreSuspendedTreeContext(fiber, treeContext);
   }
@@ -203,7 +203,7 @@ function deleteHydratableInstance(
 
 function warnNonhydratedInstance(returnFiber: Fiber, fiber: Fiber) {
   if (__DEV__) {
-    if (didSuspendOrError) {
+    if (didSuspendOrErrorDEV) {
       // Inside a boundary that already suspended. We're currently rendering the
       // siblings of a suspended node. The mismatch may be due to the missing
       // data, so it's probably a false positive.
@@ -454,7 +454,7 @@ function prepareToHydrateHostInstance(
   }
 
   const instance: Instance = fiber.stateNode;
-  const shouldWarnIfMismatchDev = !didSuspendOrError;
+  const shouldWarnIfMismatchDev = !didSuspendOrErrorDEV;
   const updatePayload = hydrateInstance(
     instance,
     fiber.type,
@@ -484,7 +484,7 @@ function prepareToHydrateHostTextInstance(fiber: Fiber): boolean {
 
   const textInstance: TextInstance = fiber.stateNode;
   const textContent: string = fiber.memoizedProps;
-  const shouldWarnIfMismatchDev = !didSuspendOrError;
+  const shouldWarnIfMismatchDev = !didSuspendOrErrorDEV;
   const shouldUpdate = hydrateTextInstance(
     textInstance,
     textContent,
@@ -663,7 +663,7 @@ function resetHydrationState(): void {
   hydrationParentFiber = null;
   nextHydratableInstance = null;
   isHydrating = false;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
 }
 
 export function upgradeHydrationErrorsToRecoverable(): void {
diff --git a/packages/react-reconciler/src/ReactFiberHydrationContext.old.js b/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
index 043ed02e37e8..d8583913aef7 100644
--- a/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
+++ b/packages/react-reconciler/src/ReactFiberHydrationContext.old.js
@@ -87,7 +87,7 @@ 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.
-let didSuspendOrError: boolean = false;
+let didSuspendOrErrorDEV: boolean = false;
 
 // Hydration errors that were thrown inside this boundary
 let hydrationErrors: Array<mixed> | null = null;
@@ -104,7 +104,7 @@ function warnIfHydrating() {
 
 export function markDidThrowWhileHydratingDEV() {
   if (__DEV__) {
-    didSuspendOrError = true;
+    didSuspendOrErrorDEV = true;
   }
 }
 
@@ -120,7 +120,7 @@ function enterHydrationState(fiber: Fiber): boolean {
   hydrationParentFiber = fiber;
   isHydrating = true;
   hydrationErrors = null;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
   return true;
 }
 
@@ -138,7 +138,7 @@ function reenterHydrationStateFromDehydratedSuspenseInstance(
   hydrationParentFiber = fiber;
   isHydrating = true;
   hydrationErrors = null;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
   if (treeContext !== null) {
     restoreSuspendedTreeContext(fiber, treeContext);
   }
@@ -203,7 +203,7 @@ function deleteHydratableInstance(
 
 function warnNonhydratedInstance(returnFiber: Fiber, fiber: Fiber) {
   if (__DEV__) {
-    if (didSuspendOrError) {
+    if (didSuspendOrErrorDEV) {
       // Inside a boundary that already suspended. We're currently rendering the
       // siblings of a suspended node. The mismatch may be due to the missing
       // data, so it's probably a false positive.
@@ -454,7 +454,7 @@ function prepareToHydrateHostInstance(
   }
 
   const instance: Instance = fiber.stateNode;
-  const shouldWarnIfMismatchDev = !didSuspendOrError;
+  const shouldWarnIfMismatchDev = !didSuspendOrErrorDEV;
   const updatePayload = hydrateInstance(
     instance,
     fiber.type,
@@ -484,7 +484,7 @@ function prepareToHydrateHostTextInstance(fiber: Fiber): boolean {
 
   const textInstance: TextInstance = fiber.stateNode;
   const textContent: string = fiber.memoizedProps;
-  const shouldWarnIfMismatchDev = !didSuspendOrError;
+  const shouldWarnIfMismatchDev = !didSuspendOrErrorDEV;
   const shouldUpdate = hydrateTextInstance(
     textInstance,
     textContent,
@@ -663,7 +663,7 @@ function resetHydrationState(): void {
   hydrationParentFiber = null;
   nextHydratableInstance = null;
   isHydrating = false;
-  didSuspendOrError = false;
+  didSuspendOrErrorDEV = false;
 }
 
 export function upgradeHydrationErrorsToRecoverable(): void {