diff --git a/.changeset/early-planets-knock.md b/.changeset/early-planets-knock.md
new file mode 100644
index 000000000000..378e2f4b2fd1
--- /dev/null
+++ b/.changeset/early-planets-knock.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fix filename generation for `.astro` pages