diff --git a/.changeset/long-mangos-walk.md b/.changeset/long-mangos-walk.md
new file mode 100644
index 000000000000..efa85cb9afb0
--- /dev/null
+++ b/.changeset/long-mangos-walk.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fix the passthrough image service not generating `srcset` values properly
diff --git a/packages/astro/src/assets/services/noop.ts b/packages/astro/src/assets/services/noop.ts
index 38d7dbdb65e2..fe6cc7c922e5 100644
--- a/packages/astro/src/assets/services/noop.ts
+++ b/packages/astro/src/assets/services/noop.ts
@@ -2,11 +2,8 @@ import { baseService, type LocalImageService } from './service.js';
 
 // Empty service used for platforms that neither support Squoosh or Sharp.
 const noopService: LocalImageService = {
+	...baseService,
 	propertiesToHash: ['src'],
-	validateOptions: baseService.validateOptions,
-	getURL: baseService.getURL,
-	parseURL: baseService.parseURL,
-	getHTMLAttributes: baseService.getHTMLAttributes,
 	async transform(inputBuffer, transformOptions) {
 		return {
 			data: inputBuffer,