diff --git a/.changeset/thick-lines-follow.md b/.changeset/thick-lines-follow.md
new file mode 100644
index 00000000000..20a42bcbca2
--- /dev/null
+++ b/.changeset/thick-lines-follow.md
@@ -0,0 +1,5 @@
+---
+'@tanstack/start-plugin-core': minor
+---
+
+fix streaming in vite preview
diff --git a/packages/start-plugin-core/src/preview-server-plugin/plugin.ts b/packages/start-plugin-core/src/preview-server-plugin/plugin.ts
index 3257a8323b7..3d2d8a05bf6 100644
--- a/packages/start-plugin-core/src/preview-server-plugin/plugin.ts
+++ b/packages/start-plugin-core/src/preview-server-plugin/plugin.ts
@@ -50,6 +50,10 @@ export function previewServerPlugin(): Plugin {
               const webReq = new NodeRequest({ req, res })
               const webRes: Response = await serverBuild.fetch(webReq)
 
+              if (webRes.headers.get('content-type')?.startsWith('text/html')) {
+                res.setHeader('content-encoding', 'identity')
+              }
+
               // Temporary workaround
               // Vite preview's compression middleware doesn't support flattened array headers that srvx sets
               // Call writeHead() before srvx to avoid corruption