diff --git a/packages/react-dom/src/client/ReactDOMComponent.js b/packages/react-dom/src/client/ReactDOMComponent.js
index 2f0190084b..539d53b781 100644
--- a/packages/react-dom/src/client/ReactDOMComponent.js
+++ b/packages/react-dom/src/client/ReactDOMComponent.js
@@ -824,10 +824,7 @@ export function diffProperties(
         // inserted already.
       }
     } else if (propKey === CHILDREN) {
-      if (
-        lastProp !== nextProp &&
-        (typeof nextProp === 'string' || typeof nextProp === 'number')
-      ) {
+      if (typeof nextProp === 'string' || typeof nextProp === 'number') {
         (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
       }
     } else if (