diff --git a/packages/dev/addons/src/index.ts b/packages/dev/addons/src/index.ts
index c20cbbd2ace..84e8c52a969 100644
--- a/packages/dev/addons/src/index.ts
+++ b/packages/dev/addons/src/index.ts
@@ -1,3 +1,4 @@
 /* eslint-disable @typescript-eslint/no-restricted-imports */
 export * from "./htmlMesh/index";
 export * from "./msdfText/index";
+export * from "./lottie/index";
diff --git a/packages/dev/addons/src/lottie/lottiePlayer.ts b/packages/dev/addons/src/lottie/lottiePlayer.ts
index 67ec0aa23b6..4dae2ddc182 100644
--- a/packages/dev/addons/src/lottie/lottiePlayer.ts
+++ b/packages/dev/addons/src/lottie/lottiePlayer.ts
@@ -108,7 +108,8 @@ export class LottiePlayer {
 
             const offscreen = this._canvas.transferControlToOffscreen();
 
-            this._worker = new Worker(new URL("./worker.ts", import.meta.url), { type: "module" });
+            // Use an extensionless path so Webpack resolves to .ts in dev and .js in published output
+            this._worker = new Worker(new URL("./worker", import.meta.url), { type: "module" });
             this._worker.onmessage = (evt: MessageEvent) => {
                 if (evt.data.animationWidth && evt.data.animationHeight && this._canvas) {
                     this._canvas.style.width = `${evt.data.animationWidth}px`;