diff --git a/packages/react-dom/src/__tests__/ReactDOMFizzServerNode-test.js b/packages/react-dom/src/__tests__/ReactDOMFizzServerNode-test.js
index 2f0d5bb98ce00..11c7043e2b9de 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFizzServerNode-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFizzServerNode-test.js
@@ -635,4 +635,17 @@ describe('ReactDOMFizzServerNode', () => {
     expect(rendered).toBe(false);
     expect(isComplete).toBe(true);
   });
+
+  it('should encode multibyte characters correctly without nulls (#24985)', () => {
+    const {writable, output} = getTestWritable();
+    const {pipe} = ReactDOMFizzServer.renderToPipeableStream(
+      <div>{Array(700).fill('ののの')}</div>,
+    );
+    pipe(writable);
+    jest.runAllTimers();
+    expect(output.result.indexOf('\u0000')).toBe(-1);
+    expect(output.result).toEqual(
+      '<div>' + Array(700).fill('ののの').join('<!-- -->') + '</div>',
+    );
+  });
 });
diff --git a/packages/react-server/src/ReactServerStreamConfigNode.js b/packages/react-server/src/ReactServerStreamConfigNode.js
index 807dafe5edf6e..16a773314d679 100644
--- a/packages/react-server/src/ReactServerStreamConfigNode.js
+++ b/packages/react-server/src/ReactServerStreamConfigNode.js
@@ -75,12 +75,14 @@ function writeStringChunk(destination: Destination, stringChunk: string) {
   writtenBytes += written;
 
   if (read < stringChunk.length) {
-    writeToDestination(destination, (currentView: any));
+    writeToDestination(
+      destination,
+      (currentView: any).subarray(0, writtenBytes),
+    );
     currentView = new Uint8Array(VIEW_SIZE);
     writtenBytes = textEncoder.encodeInto(
       stringChunk.slice(read),
-      // $FlowFixMe[incompatible-call] found when upgrading Flow
-      currentView,
+      (currentView: any),
     ).written;
   }