diff --git a/packages/react-reconciler/src/ReactFiberWorkLoop.new.js b/packages/react-reconciler/src/ReactFiberWorkLoop.new.js
index 9cd162cb01cf0..679a93bdd2790 100644
--- a/packages/react-reconciler/src/ReactFiberWorkLoop.new.js
+++ b/packages/react-reconciler/src/ReactFiberWorkLoop.new.js
@@ -1470,7 +1470,7 @@ function handleError(root, thrownValue): void {
   } while (true);
 }
 
-function pushDispatcher(root) {
+function pushDispatcher() {
   const prevDispatcher = ReactCurrentDispatcher.current;
   ReactCurrentDispatcher.current = ContextOnlyDispatcher;
   if (prevDispatcher === null) {
@@ -1586,7 +1586,7 @@ export function renderHasNotSuspendedYet(): boolean {
 function renderRootSync(root: FiberRoot, lanes: Lanes) {
   const prevExecutionContext = executionContext;
   executionContext |= RenderContext;
-  const prevDispatcher = pushDispatcher(root);
+  const prevDispatcher = pushDispatcher();
 
   // If the root or lanes have changed, throw out the existing stack
   // and prepare a fresh one. Otherwise we'll continue where we left off.
@@ -1661,7 +1661,7 @@ function workLoopSync() {
 function renderRootConcurrent(root: FiberRoot, lanes: Lanes) {
   const prevExecutionContext = executionContext;
   executionContext |= RenderContext;
-  const prevDispatcher = pushDispatcher(root);
+  const prevDispatcher = pushDispatcher();
 
   // If the root or lanes have changed, throw out the existing stack
   // and prepare a fresh one. Otherwise we'll continue where we left off.
diff --git a/packages/react-reconciler/src/ReactFiberWorkLoop.old.js b/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
index 4cb6e5093377e..0aabd21aab470 100644
--- a/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
+++ b/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
@@ -1454,7 +1454,7 @@ function handleError(root, thrownValue): void {
   } while (true);
 }
 
-function pushDispatcher(root) {
+function pushDispatcher() {
   const prevDispatcher = ReactCurrentDispatcher.current;
   ReactCurrentDispatcher.current = ContextOnlyDispatcher;
   if (prevDispatcher === null) {
@@ -1570,7 +1570,7 @@ export function renderHasNotSuspendedYet(): boolean {
 function renderRootSync(root: FiberRoot, lanes: Lanes) {
   const prevExecutionContext = executionContext;
   executionContext |= RenderContext;
-  const prevDispatcher = pushDispatcher(root);
+  const prevDispatcher = pushDispatcher();
 
   // If the root or lanes have changed, throw out the existing stack
   // and prepare a fresh one. Otherwise we'll continue where we left off.
@@ -1645,7 +1645,7 @@ function workLoopSync() {
 function renderRootConcurrent(root: FiberRoot, lanes: Lanes) {
   const prevExecutionContext = executionContext;
   executionContext |= RenderContext;
-  const prevDispatcher = pushDispatcher(root);
+  const prevDispatcher = pushDispatcher();
 
   // If the root or lanes have changed, throw out the existing stack
   // and prepare a fresh one. Otherwise we'll continue where we left off.