diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.new.js b/packages/react-reconciler/src/ReactFiberBeginWork.new.js
index 32da430eef071..b9a35475e693e 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.new.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.new.js
@@ -1399,7 +1399,7 @@ function updateHostRoot(current, workInProgress, renderLanes) {
     } else {
       // The outermost shell has not hydrated yet. Start hydrating.
       enterHydrationState(workInProgress);
-      if (enableUseMutableSource && supportsHydration) {
+      if (enableUseMutableSource) {
         const mutableSourceEagerHydrationData =
           root.mutableSourceEagerHydrationData;
         if (mutableSourceEagerHydrationData != null) {
diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.old.js b/packages/react-reconciler/src/ReactFiberBeginWork.old.js
index 45aa1cd43ba91..42641c85dd060 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.old.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.old.js
@@ -1399,7 +1399,7 @@ function updateHostRoot(current, workInProgress, renderLanes) {
     } else {
       // The outermost shell has not hydrated yet. Start hydrating.
       enterHydrationState(workInProgress);
-      if (enableUseMutableSource && supportsHydration) {
+      if (enableUseMutableSource) {
         const mutableSourceEagerHydrationData =
           root.mutableSourceEagerHydrationData;
         if (mutableSourceEagerHydrationData != null) {