diff --git a/packages/shared/forks/ReactFeatureFlags.www-dynamic.js b/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
index e0f431fe7f10c..eba6c45aba5bf 100644
--- a/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
+++ b/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
@@ -39,6 +39,7 @@ export const enableUseEffectCRUDOverload = __VARIANT__;
 export const enableFastAddPropertiesInDiffing = __VARIANT__;
 export const enableLazyPublicInstanceInFabric = false;
 export const enableViewTransition = __VARIANT__;
+export const enableScrollEndPolyfill = __VARIANT__;
 
 // TODO: These flags are hard-coded to the default values used in open source.
 // Update the tests so that they pass in either mode, then set these
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index 0f790135d2aff..126b9ee373bd2 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -37,6 +37,7 @@ export const {
   transitionLaneExpirationMs,
   enableFastAddPropertiesInDiffing,
   enableViewTransition,
+  enableScrollEndPolyfill,
 } = dynamicFeatureFlags;
 
 // On WWW, __EXPERIMENTAL__ is used for a new modern build.
@@ -116,7 +117,5 @@ export const enableLazyPublicInstanceInFabric = false;
 
 export const enableSwipeTransition = false;
 
-export const enableScrollEndPolyfill = false;
-
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);