diff --git a/src/Webapi/Dom/Webapi__Dom__Worker.re b/src/Webapi/Dom/Webapi__Dom__Worker.re
index cedd7a4..664d012 100644
--- a/src/Webapi/Dom/Webapi__Dom__Worker.re
+++ b/src/Webapi/Dom/Webapi__Dom__Worker.re
@@ -7,7 +7,7 @@ include Webapi__Dom__EventTarget.Impl({
 [@mel.new] external make: string => t = "Worker";
 [@mel.new] external makeWithUrl: Webapi__Url.t => t = "Worker";
 [@mel.send.pipe: t] external postMessage: 'a => unit = "postMessage";
-[@mel.send.pipe: t] external terminate: unit => unit = "terminate";
+[@mel.send.pipe: t] external terminate: unit = "terminate";
 
 [@mel.send.pipe: t]
 external addMessageEventListener: