diff --git a/edit-post/store/middlewares.js b/edit-post/store/middlewares.js
index 790b6e548786e9..33c748dc9551d4 100644
--- a/edit-post/store/middlewares.js
+++ b/edit-post/store/middlewares.js
@@ -36,10 +36,8 @@ function applyMiddlewares( store ) {
 	chain = middlewares.map( middleware => middleware( middlewareAPI ) );
 	enhancedDispatch = flowRight( ...chain )( store.dispatch );
 
-	return {
-		...store,
-		dispatch: enhancedDispatch,
-	};
+	store.dispatch = enhancedDispatch;
+	return store;
 }
 
 export default applyMiddlewares;
diff --git a/editor/store/middlewares.js b/editor/store/middlewares.js
index 4846b7fb8984ae..fd082a4dec3360 100644
--- a/editor/store/middlewares.js
+++ b/editor/store/middlewares.js
@@ -38,10 +38,8 @@ function applyMiddlewares( store ) {
 	chain = middlewares.map( middleware => middleware( middlewareAPI ) );
 	enhancedDispatch = flowRight( ...chain )( store.dispatch );
 
-	return {
-		...store,
-		dispatch: enhancedDispatch,
-	};
+	store.dispatch = enhancedDispatch;
+	return store;
 }
 
 export default applyMiddlewares;