diff --git a/schematics/application/index.spec.ts b/schematics/application/index.spec.ts
index 09ce8dbf38..8137c9f094 100644
--- a/schematics/application/index.spec.ts
+++ b/schematics/application/index.spec.ts
@@ -27,6 +27,10 @@ describe('NgAlainSchematic: application', () => {
       expect(json != null).toBe(true);
       expect(json.recommendations[0]).toBe('cipchk.ng-alain-extension-pack');
     });
+    it('should be add addFileReplacements', () => {
+      const angualrJson = tree.readContent('angular.json');
+      expect(angualrJson).toContain(`fileReplacements`);
+    });
   });
 
   describe('#i18n', () => {
diff --git a/schematics/application/index.ts b/schematics/application/index.ts
index 9cecc14755..c29d7ff5a6 100644
--- a/schematics/application/index.ts
+++ b/schematics/application/index.ts
@@ -22,6 +22,7 @@ import {
   addAllowedCommonJsDependencies,
   addAllowSyntheticDefaultImports,
   addAssetsToTarget,
+  addFileReplacements,
   addHeadStyle,
   addHtmlToBody,
   addPackage,
@@ -94,6 +95,7 @@ function fixAngularJson(options: ApplicationOptions): Rule {
 
     addStylePreprocessorOptionsToAllProject(workspace);
     addSchematicCollections(workspace);
+    addFileReplacements(workspace);
   });
 }
 
diff --git a/schematics/utils/workspace.ts b/schematics/utils/workspace.ts
index 9619ef451a..093cc883f7 100644
--- a/schematics/utils/workspace.ts
+++ b/schematics/utils/workspace.ts
@@ -179,3 +179,18 @@ export function addSchematicCollections(workspace: WorkspaceDefinition): void {
   if (!schematicCollections.includes(`ng-alain`)) schematicCollections.push(`ng-alain`);
   workspace.extensions.cli['schematicCollections'] = schematicCollections;
 }
+
+export function addFileReplacements(workspace: WorkspaceDefinition): void {
+  workspace.projects.forEach(project => {
+    const build = project.targets.get(BUILD_TARGET_BUILD);
+    if (build == null || build.options == null) return;
+    if (build.configurations == null) build.configurations = {};
+    if (build.configurations.production == null) build.configurations.production = {};
+    if (!Array.isArray(build.configurations.production.fileReplacements))
+      build.configurations.production.fileReplacements = [];
+    build.configurations.production.fileReplacements.push({
+      replace: 'src/environments/environment.ts',
+      with: 'src/environments/environment.prod.ts'
+    });
+  });
+}