diff --git a/.changeset/silent-zoos-work.md b/.changeset/silent-zoos-work.md
new file mode 100644
index 0000000000..b5ec9ac11e
--- /dev/null
+++ b/.changeset/silent-zoos-work.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fixes `toggleNotification()`'s parameter type for the notification level not using the proper levels
diff --git a/packages/astro/src/runtime/client/dev-toolbar/helpers.ts b/packages/astro/src/runtime/client/dev-toolbar/helpers.ts
index 9fcb5af798..849c8cb101 100644
--- a/packages/astro/src/runtime/client/dev-toolbar/helpers.ts
+++ b/packages/astro/src/runtime/client/dev-toolbar/helpers.ts
@@ -1,7 +1,7 @@
 type NotificationPayload =
 	| {
 			state: true;
-			level?: 'error' | 'warn' | 'info';
+			level?: 'error' | 'warning' | 'info';
 	  }
 	| {
 			state: false;