diff --git a/.changeset/beige-beers-explain.md b/.changeset/beige-beers-explain.md
new file mode 100644
index 000000000000..6995ba2cf8e6
--- /dev/null
+++ b/.changeset/beige-beers-explain.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-node': patch
+---
+
+[fix] provide default port only if path not provided
diff --git a/packages/adapter-node/index.js b/packages/adapter-node/index.js
index 8fcd96c274f5..bbcef9d35be1 100644
--- a/packages/adapter-node/index.js
+++ b/packages/adapter-node/index.js
@@ -62,7 +62,9 @@ export default function ({
 					path_env
 				)}] || false;\nexport const host = process.env[${JSON.stringify(
 					host_env
-				)}] || '0.0.0.0';\nexport const port = process.env[${JSON.stringify(port_env)}] || 3000;`
+				)}] || '0.0.0.0';\nexport const port = process.env[${JSON.stringify(
+					port_env
+				)}] || (!path && 3000);`
 			);
 			/** @type {BuildOptions} */
 			const defaultOptions = {