diff --git a/src/index.d.ts b/src/index.d.ts
index 8ef9c473fa..11d0f3a75d 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -311,4 +311,4 @@ export interface Context<T> {
 }
 export interface PreactContext<T> extends Context<T> {}
 
-export function createContext<T>(defaultValue: T): Context<T>;
+export function createContext<T = undefined>(defaultValue: T): Context<T>;