diff --git a/.changeset/olive-rings-eat.md b/.changeset/olive-rings-eat.md
new file mode 100644
index 000000000000..9ddf756dc122
--- /dev/null
+++ b/.changeset/olive-rings-eat.md
@@ -0,0 +1,5 @@
+---
+"@sveltejs/adapter-vercel": patch
+---
+
+fix: Copy .wasm files during build
diff --git a/packages/adapter-vercel/index.js b/packages/adapter-vercel/index.js
index c947d80bab12..05cab4989ab7 100644
--- a/packages/adapter-vercel/index.js
+++ b/packages/adapter-vercel/index.js
@@ -124,7 +124,10 @@ const plugin = function (defaults = {}) {
 					format: 'esm',
 					external: config.external,
 					sourcemap: 'linked',
-					banner: { js: 'globalThis.global = globalThis;' }
+					banner: { js: 'globalThis.global = globalThis;' },
+					loader: {
+						'.wasm': 'copy'
+					}
 				});
 
 				write(