diff --git a/packages/ngtools/webpack/src/angular_compiler_plugin.ts b/packages/ngtools/webpack/src/angular_compiler_plugin.ts
index 636c6ceecb7d..af6c6826c049 100644
--- a/packages/ngtools/webpack/src/angular_compiler_plugin.ts
+++ b/packages/ngtools/webpack/src/angular_compiler_plugin.ts
@@ -948,13 +948,13 @@ export class AngularCompilerPlugin {
             this._normalizedLocale));
         }
 
-        if (this._useFactories) {
-          // Replace bootstrap in browser AOT.
+        if (!this._JitMode) {
+          // Replace bootstrap in browser non JIT Mode.
           this._transformers.push(replaceBootstrap(
             isAppPath,
             getEntryModule,
             getTypeChecker,
-            !!this._compilerOptions.enableIvy,
+            this._useFactories,
           ));
         }
       } else if (this._platform === PLATFORM.Server) {
diff --git a/packages/ngtools/webpack/src/transformers/replace_bootstrap.ts b/packages/ngtools/webpack/src/transformers/replace_bootstrap.ts
index 064e8acedd67..37aeebcbbdb6 100644
--- a/packages/ngtools/webpack/src/transformers/replace_bootstrap.ts
+++ b/packages/ngtools/webpack/src/transformers/replace_bootstrap.ts
@@ -17,7 +17,7 @@ export function replaceBootstrap(
   shouldTransform: (fileName: string) => boolean,
   getEntryModule: () => { path: string, className: string } | null,
   getTypeChecker: () => ts.TypeChecker,
-  enableIvy?: boolean,
+  useFactories = true,
 ): ts.TransformerFactory<ts.SourceFile> {
 
   const standardTransform: StandardTransform = function (sourceFile: ts.SourceFile) {
@@ -82,7 +82,7 @@ export function replaceBootstrap(
       let modulePath = `./${relativeEntryModulePath}`.replace(/\\/g, '/');
       let bootstrapIdentifier = 'bootstrapModule';
 
-      if (!enableIvy) {
+      if (useFactories) {
         className += 'NgFactory';
         modulePath += '.ngfactory';
         bootstrapIdentifier = 'bootstrapModuleFactory';
diff --git a/packages/ngtools/webpack/src/transformers/replace_bootstrap_spec.ts b/packages/ngtools/webpack/src/transformers/replace_bootstrap_spec.ts
index 31358da6e4dd..0dc2742689d7 100644
--- a/packages/ngtools/webpack/src/transformers/replace_bootstrap_spec.ts
+++ b/packages/ngtools/webpack/src/transformers/replace_bootstrap_spec.ts
@@ -52,7 +52,7 @@ describe('@ngtools/webpack transformers', () => {
       expect(tags.oneLine`${result}`).toEqual(tags.oneLine`${output}`);
     });
 
-    it('should replace bootstrap for Ivy without referencing ngFactory', () => {
+    it('should replace bootstrap without referencing ngFactory when useFactories is false', () => {
       const input = tags.stripIndent`
         import { enableProdMode } from '@angular/core';
         import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
@@ -87,7 +87,7 @@ describe('@ngtools/webpack transformers', () => {
         () => true,
         () => ({ path: '/project/src/app/app.module', className: 'AppModule' }),
         () => program.getTypeChecker(),
-        true,
+        false,
       );
       const result = transformTypescript(undefined, [transformer], program, compilerHost);