diff --git a/packages/esm-appointments-app/src/config-schema.ts b/packages/esm-appointments-app/src/config-schema.ts
index 08d6fde96..6fc64412f 100644
--- a/packages/esm-appointments-app/src/config-schema.ts
+++ b/packages/esm-appointments-app/src/config-schema.ts
@@ -88,7 +88,7 @@ export const configSchema = {
   allowAllDayAppointments: {
     _type: Type.Boolean,
     _description: 'Whether to allow scheduling of all-day appointments (vs appointments with start time and end time)',
-    _default: true,
+    _default: false,
   },
   checkInButton: {
     enabled: {