diff --git a/rivetkit-typescript/packages/rivetkit/src/actor/instance/schedule-manager.ts b/rivetkit-typescript/packages/rivetkit/src/actor/instance/schedule-manager.ts
index 2291b23f07..9a8413ea50 100644
--- a/rivetkit-typescript/packages/rivetkit/src/actor/instance/schedule-manager.ts
+++ b/rivetkit-typescript/packages/rivetkit/src/actor/instance/schedule-manager.ts
@@ -261,7 +261,8 @@ export class ScheduleManager<S, CP, CS, V, I, DB extends AnyDatabaseProvider> {
 				});
 
 				// Look up the action function
-				const fn = this.#config.actions[event.action];
+				const actions = this.#config.actions ?? {};
+				const fn = actions[event.action];
 
 				if (!fn) {
 					throw new Error(