diff --git a/packages/overlayscrollbars-ngx/build.js b/packages/overlayscrollbars-ngx/build.js
index 43eafc7..a7f8670 100644
--- a/packages/overlayscrollbars-ngx/build.js
+++ b/packages/overlayscrollbars-ngx/build.js
@@ -61,18 +61,56 @@ gulp.task('prepare', function (done) {
 
 gulp.task('ngc', function (done) {
     sh.echo('> Compile with "ngc"');
+
+    // aot compile .metadata.json: https://github.com/ng-packagr/ng-packagr/blob/master/docs/DESIGN.md#build-artefacts
+    /*
+     * make sure metadata.json origins paths are correct, to do that
+     * create a aotEntry dummy file which for that purpose
+    */
+    let aotEntryFile = `${filesInfo.typingsFolder}/index.ts`;
+    let srcEntryFile = `${filesInfo.srcFolder}/index.ts`;
+    let aotImportPath = path.relative(path.dirname(path.resolve(aotEntryFile)), path.dirname(path.resolve(srcEntryFile)));
+    sh.mkdir('-p', path.dirname(aotEntryFile));
+    sh.ShellString(`export * from '${aotImportPath.split(path.sep).join('/')}/index'`).to(aotEntryFile);
+
     let newTsconfigJson = {
         ...tsconfigJson,
+        // https://github.com/angular/angular/blob/master/packages/compiler-cli/src/transformers/api.ts#L40
+        angularCompilerOptions: {
+            ...tsconfigJson.angularCompilerOptions,
+            skipMetadataEmit: false,
+            strictMetadataEmit: true,
+            fullTemplateTypeCheck: true,
+            flatModuleOutFile: `${packageName}.js`,
+            flatModuleId: packageName
+        },
         compilerOptions: {
             ...tsconfigJson.compilerOptions,
             declarationDir: filesInfo.ngcFolder,
             outDir: filesInfo.ngcFolder,
         },
-        include: [filesInfo.srcFolder],
+        files: [aotEntryFile],
+        include: undefined,
         exclude: [filesInfo.distFolder, filesInfo.exampleFolder, 'node_modules']
     };
     sh.ShellString(JSON.stringify(newTsconfigJson, null, 4)).to(filesInfo.tsconfigJsonPath);
     sh.exec('ngc -p tsconfig.json');
+
+    // delete the aotEntry dummy file 
+    sh.rm('-f', aotEntryFile);
+
+    // rename and move metadata.json to correct folder
+    let aotMetadataJsonPath = path.normalize(`${filesInfo.ngcFolder}/${filesInfo.typingsFolder}/${packageName}.metadata.json`);
+    let aotMetadataJsonPathNew = path.normalize(`${filesInfo.typingsFolder}/index.metadata.json`);
+    if (sh.test('-f', aotMetadataJsonPath)) {
+        sh.echo(chalk.yellowBright('  [metadata.json]: ') + chalk.greenBright(`${aotMetadataJsonPath} → ${aotMetadataJsonPathNew}`));
+        sh.mv(aotMetadataJsonPath, aotMetadataJsonPathNew);
+    }
+    else {
+        sh.echo(chalk.redBright(`Couldn't find metadata.json: "${aotMetadataJsonPath}"`));
+        return;
+    }
+
     done();
 });
 
@@ -85,6 +123,7 @@ gulp.task('tsconfigJson', function (done) {
             declarationDir: filesInfo.typingsFolder,
             outDir: filesInfo.distFolder,
         },
+        files: undefined,
         include: [filesInfo.srcFolder],
         exclude: [filesInfo.distFolder, filesInfo.exampleFolder, 'node_modules']
     };
diff --git a/packages/overlayscrollbars-ngx/dist/types/index.metadata.json b/packages/overlayscrollbars-ngx/dist/types/index.metadata.json
new file mode 100644
index 0000000..0d9d571
--- /dev/null
+++ b/packages/overlayscrollbars-ngx/dist/types/index.metadata.json
@@ -0,0 +1 @@
+{"__symbolic":"module","version":4,"metadata":{"OverlayScrollbarsComponent":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Component","line":3,"character":1},"arguments":[{"selector":"overlay-scrollbars","template":"<ng-content></ng-content>","styles":[":host { display: block; }"]}]}],"members":{"_options":[{"__symbolic":"property","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Input","line":9,"character":5},"arguments":["options"]}]}],"_extensions":[{"__symbolic":"property","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"Input","line":10,"character":5},"arguments":["extensions"]}]}],"__ctor__":[{"__symbolic":"constructor","parameters":[{"__symbolic":"reference","module":"@angular/core","name":"ElementRef","line":14,"character":30}]}],"osInstance":[{"__symbolic":"method"}],"osTarget":[{"__symbolic":"method"}],"ngAfterViewInit":[{"__symbolic":"method"}],"ngOnDestroy":[{"__symbolic":"method"}],"ngOnChanges":[{"__symbolic":"method"}]}},"OverlayscrollbarsModule":{"__symbolic":"class","decorators":[{"__symbolic":"call","expression":{"__symbolic":"reference","module":"@angular/core","name":"NgModule","line":3,"character":1},"arguments":[{"imports":[],"declarations":[{"__symbolic":"reference","name":"OverlayScrollbarsComponent"}],"exports":[{"__symbolic":"reference","name":"OverlayScrollbarsComponent"}]}]}],"members":{}}},"origins":{"OverlayScrollbarsComponent":"../../src/overlayscrollbars.component","OverlayscrollbarsModule":"../../src/overlayscrollbars.module"},"importAs":"overlayscrollbars-ngx"}
\ No newline at end of file
diff --git a/packages/overlayscrollbars-ngx/package.json b/packages/overlayscrollbars-ngx/package.json
index 402411b..62de86b 100644
--- a/packages/overlayscrollbars-ngx/package.json
+++ b/packages/overlayscrollbars-ngx/package.json
@@ -51,7 +51,7 @@
         "setup": "npm i && cd example && npm i && cd ..",
         "build": "node build.js",
         "example": "cd example && npx ng serve",
-        "build-example": "cd example && npx ng build --prod --base-href \"/OverlayScrollbars/frameworks/angular/\"  --aot=false --build-optimizer=false",
+        "build-example": "cd example && npx ng build --prod --base-href \"/OverlayScrollbars/frameworks/angular/\"",
         "test": "echo \"Error: no test specified\" && exit 1"
     }
 }
\ No newline at end of file
diff --git a/packages/overlayscrollbars-ngx/tsconfig.json b/packages/overlayscrollbars-ngx/tsconfig.json
index 99ce574..f0baeb5 100644
--- a/packages/overlayscrollbars-ngx/tsconfig.json
+++ b/packages/overlayscrollbars-ngx/tsconfig.json
@@ -2,9 +2,11 @@
     "angularCompilerOptions": {
         "annotateForClosureCompiler": true,
         "skipTemplateCodegen": true,
+        "skipMetadataEmit": false,
         "strictMetadataEmit": true,
         "fullTemplateTypeCheck": true,
-        "strictInjectionParameters": true
+        "flatModuleOutFile": "overlayscrollbars-ngx.js",
+        "flatModuleId": "overlayscrollbars-ngx"
     },
     "compilerOptions": {
         "allowJs": false,
@@ -30,12 +32,12 @@
         "moduleResolution": "node",
         "removeComments": true
     },
-    "include": [
-        "./src"
-    ],
     "exclude": [
         "./dist",
         "./example",
         "node_modules"
+    ],
+    "include": [
+        "./src"
     ]
 }
\ No newline at end of file