diff --git a/src/types/ical.js.d.ts b/src/types/ical.js.d.ts
index 088f571..1c45c74 100644
--- a/src/types/ical.js.d.ts
+++ b/src/types/ical.js.d.ts
@@ -10,6 +10,7 @@ declare module 'ical.js' {
     public toJSON(): any[];
 
     public getFirstSubcomponent(name?: string): Component | null;
+    public getAllSubcomponents(name?: string): Component[];
 
     public getFirstPropertyValue(name?: string): any;