diff --git a/packages/1-prisma-cloud/2-shared-modules/storage/package.json b/packages/1-prisma-cloud/2-shared-modules/storage/package.json
index a4b8a012..37edff73 100644
--- a/packages/1-prisma-cloud/2-shared-modules/storage/package.json
+++ b/packages/1-prisma-cloud/2-shared-modules/storage/package.json
@@ -9,9 +9,9 @@
       "types": "./dist/index.d.mts",
       "default": "./dist/index.mjs"
     },
-    "./service": {
-      "types": "./dist/service.d.mts",
-      "default": "./dist/service.mjs"
+    "./storage-service": {
+      "types": "./dist/storage-service.d.mts",
+      "default": "./dist/storage-service.mjs"
     },
     "./storage-entrypoint": {
       "types": "./dist/storage-entrypoint.d.mts",
diff --git a/packages/1-prisma-cloud/2-shared-modules/storage/src/storage-service.ts b/packages/1-prisma-cloud/2-shared-modules/storage/src/storage-service.ts
index c611804b..f0679f29 100644
--- a/packages/1-prisma-cloud/2-shared-modules/storage/src/storage-service.ts
+++ b/packages/1-prisma-cloud/2-shared-modules/storage/src/storage-service.ts
@@ -19,7 +19,7 @@ export function storageService(opts: { bucket: string }) {
     deps: { db: postgres(), credentials: s3Credentials() },
     params: { bucket: string({ default: opts.bucket }) },
     build: node({
-      module: new URL('./service.mjs', import.meta.url).href,
+      module: new URL('./storage-service.mjs', import.meta.url).href,
       entry: './storage-entrypoint.mjs',
     }),
     expose: { store: s3Contract },
diff --git a/packages/1-prisma-cloud/2-shared-modules/storage/tsdown.config.ts b/packages/1-prisma-cloud/2-shared-modules/storage/tsdown.config.ts
index 4b0bfdc1..a7660daa 100644
--- a/packages/1-prisma-cloud/2-shared-modules/storage/tsdown.config.ts
+++ b/packages/1-prisma-cloud/2-shared-modules/storage/tsdown.config.ts
@@ -1,19 +1,16 @@
 import { baseConfig } from '@internal/tsdown-config';
 import { defineConfig } from 'tsdown';
 
-// index + the service node in ONE pass at the dist root so any shared chunk
-// sits beside them. The service node's file is emitted as `service.mjs` (NOT
-// `storage-service.mjs`): @prisma/compose/node's assemble() re-bundles
-// `build.module` and requires the output basename to be `service.*` — so
-// `build.module` points at `./service.mjs` and resolves it from the calling
-// code (import.meta.url). storage-entrypoint stands alone and is fully inlined
-// (assemble() copies it out with no siblings); `bun` stays external (a runtime
-// builtin, ADR-0008), so `import { SQL } from 'bun'` and Bun.serve resolve at
-// runtime, not at build.
+// index + storage-service in ONE pass at the dist root so any shared chunk
+// sits beside them — storageService resolves `./storage-service.mjs` from the
+// code that calls it (import.meta.url). storage-entrypoint stands alone and is
+// fully inlined (assemble() copies it out with no siblings); `bun` stays
+// external (a runtime builtin, ADR-0008), so `import { SQL } from 'bun'` and
+// Bun.serve resolve at runtime, not at build.
 export default defineConfig([
   {
     ...baseConfig,
-    entry: { index: 'src/index.ts', service: 'src/storage-service.ts' },
+    entry: { index: 'src/index.ts', 'storage-service': 'src/storage-service.ts' },
     exports: false,
     clean: true,
   },
diff --git a/packages/9-public/compose-prisma-cloud/tsdown.config.ts b/packages/9-public/compose-prisma-cloud/tsdown.config.ts
index 5c837d96..45209142 100644
--- a/packages/9-public/compose-prisma-cloud/tsdown.config.ts
+++ b/packages/9-public/compose-prisma-cloud/tsdown.config.ts
@@ -89,9 +89,7 @@ export default defineConfig([
     ...baseConfig,
     dts: false,
     entry: {
-      // Emitted as `service.mjs` — @prisma/compose/node's assemble() requires
-      // the service node's `build.module` basename to be `service.*`.
-      service: `${storageDist}/service.mjs`,
+      'storage-service': `${storageDist}/storage-service.mjs`,
       'storage-entrypoint': `${storageDist}/storage-entrypoint.mjs`,
     },
     outDir: 'dist/storage',