diff --git a/src/params/date.ts b/src/params/date.ts
new file mode 100644
index 0000000..810216e
--- /dev/null
+++ b/src/params/date.ts
@@ -0,0 +1,4 @@
+
+export function match(value) {
+  return /^\d{4}-\d{2}-\d{2}$/.test(value)
+}
\ No newline at end of file
diff --git a/src/routes/[date]/+page.svelte b/src/routes/[date=date]/+page.svelte
similarity index 100%
rename from src/routes/[date]/+page.svelte
rename to src/routes/[date=date]/+page.svelte
diff --git a/src/routes/[date]/+page.ts b/src/routes/[date=date]/+page.ts
similarity index 100%
rename from src/routes/[date]/+page.ts
rename to src/routes/[date=date]/+page.ts