diff --git a/.changeset/real-crews-double.md b/.changeset/real-crews-double.md
new file mode 100644
index 000000000000..8c09999c765a
--- /dev/null
+++ b/.changeset/real-crews-double.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-vercel': patch
+---
+
+fix: temporarily disable streaming when ISR is used
diff --git a/packages/adapter-vercel/index.js b/packages/adapter-vercel/index.js
index 6958975c27df..11ffc4f188aa 100644
--- a/packages/adapter-vercel/index.js
+++ b/packages/adapter-vercel/index.js
@@ -489,7 +489,7 @@ async function create_function_bundle(builder, entry, dir, config) {
 				maxDuration: config.maxDuration,
 				handler: path.relative(base + ancestor, entry),
 				launcherType: 'Nodejs',
-				experimentalResponseStreaming: true
+				experimentalResponseStreaming: !config.isr
 			},
 			null,
 			'\t'