diff --git a/chrome/chrome.d.ts b/chrome/chrome.d.ts
index bdd0271fca..efdfb5ce59 100644
--- a/chrome/chrome.d.ts
+++ b/chrome/chrome.d.ts
@@ -7336,7 +7336,9 @@ declare namespace chrome.webRequest {
 
 	interface WebRedirectionResponseEvent extends _WebResponseHeadersEvent<WebRedirectionResponseDetails> {}
 
-	interface WebAuthenticationChallengeEvent extends chrome.events.Event<(details: WebAuthenticationChallengeDetails, callback?: (response: BlockingResponse) => void) => void> {}
+	interface WebAuthenticationChallengeEvent extends chrome.events.Event<(details: WebAuthenticationChallengeDetails, callback?: (response: BlockingResponse) => void) => void> {
+		addListener(callback: (details: WebAuthenticationChallengeDetails) => void, filter?: RequestFilter, opt_extraInfoSpec?: string[]): void;
+    }
 
 	interface WebResponseErrorEvent extends _WebResponseHeadersEvent<WebResponseErrorDetails> {}