diff --git a/raygun4js/raygun4js.d.ts b/raygun4js/raygun4js.d.ts
index c5647f804a..88fd063ea1 100644
--- a/raygun4js/raygun4js.d.ts
+++ b/raygun4js/raygun4js.d.ts
@@ -62,8 +62,8 @@ declare namespace raygun {
         ignoreAjaxAbort?: boolean;
         ignoreAjaxError?: boolean;
         disableAnonymousUserTracking?: boolean;
-        excludedHostnames?: boolean | string[];
-        excludedUserAgents?: boolean | string[];
+        excludedHostnames?: (string|Regex)[];
+        excludedUserAgents?: (string|Regex)[];
         wrapAsynchronousCallbacks?: boolean;
         debugMode?: boolean;
         ignore3rdPartyErrors?: boolean;