diff --git a/packages/schematics/angular/web-worker/index.ts b/packages/schematics/angular/web-worker/index.ts
index 8283ab9e72f5..e1437ecc17c9 100644
--- a/packages/schematics/angular/web-worker/index.ts
+++ b/packages/schematics/angular/web-worker/index.ts
@@ -105,7 +105,6 @@ function addSnippet(options: WebWorkerOptions): Rule {
 export default function (options: WebWorkerOptions): Rule {
   return async (host: Tree) => {
     const workspace = await getWorkspace(host);
-
     if (!options.project) {
       throw new SchematicsException('Option "project" is required.');
     }
@@ -142,6 +141,18 @@ export default function (options: WebWorkerOptions): Rule {
       projectTargetOptions.webWorkerTsConfig = workerConfigPath;
     }
 
+    const projectTestTarget = project.targets.get('test');
+    if (projectTestTarget) {
+      const projectTestTargetOptions = ((projectTestTarget.options ||
+      {}) as unknown) as BrowserBuilderOptions;
+
+      const needWebWorkerConfig = !projectTestTargetOptions.webWorkerTsConfig;
+      if (needWebWorkerConfig) {
+        const workerConfigPath = join(normalize(root), 'tsconfig.worker.json');
+        projectTestTargetOptions.webWorkerTsConfig = workerConfigPath;
+      }
+    }
+
     const templateSource = apply(url('./files/worker'), [
       applyTemplates({ ...options, ...strings }),
       move(parsedPath.path),