diff --git a/scripts/build-atomics.ts b/scripts/build-atomics.ts
index 57aa5451..4052dc9e 100644
--- a/scripts/build-atomics.ts
+++ b/scripts/build-atomics.ts
@@ -35,9 +35,8 @@ function buildAtomicsDebug(opts: BuildOptions): RollupOptions {
             for (const f in bundle) {
               const b = bundle[f];
               if (b.type === 'chunk') {
-                const jsCode = b.code;
                 const debugJsPath = join(opts.distLibDebugDir, 'partytown-sandbox-atomics.js');
-                await writeFile(debugJsPath, jsCode);
+                await writeFile(debugJsPath, b.code);
                 b.code = debugHtml;
               }
             }
diff --git a/scripts/build-web-worker.ts b/scripts/build-web-worker.ts
index 19801dac..2da468b2 100644
--- a/scripts/build-web-worker.ts
+++ b/scripts/build-web-worker.ts
@@ -58,5 +58,12 @@ export function webWorkerBlobUrlPlugin(
       }
       return null;
     },
+    async generateBundle() {
+      if (opts.isDev) {
+        const wwCode = await buildWebWorker(opts, msgType, debug);
+        const wwDebugFilePath = join(opts.distLibDebugDir, `partytown-ww-${msgType}.js`);
+        await writeFile(wwDebugFilePath, wwCode);
+      }
+    },
   };
 }