diff --git a/.changeset/many-hairs-push.md b/.changeset/many-hairs-push.md
new file mode 100644
index 000000000000..7da1728d073c
--- /dev/null
+++ b/.changeset/many-hairs-push.md
@@ -0,0 +1,8 @@
+---
+'@sveltejs/adapter-auto': patch
+'@sveltejs/adapter-netlify': patch
+'@sveltejs/adapter-node': patch
+'@sveltejs/adapter-vercel': patch
+---
+
+Allow \_\_fetchPolyfill() to run several times