diff --git a/cucumber/index.d.ts b/cucumber/index.d.ts
index 8c56e3aae4..a8b85539ce 100644
--- a/cucumber/index.d.ts
+++ b/cucumber/index.d.ts
@@ -208,7 +208,7 @@ declare namespace cucumber {
 	}
 
 	export interface SupportCodeConsumer {
-		(stepDefinitions:StepDefinitions | Hooks):void;
+		(stepDefinitions:StepDefinitions & Hooks):void;
 	}
 
 	export function defineSupportCode(consumer:SupportCodeConsumer): void;