diff --git a/beacon/light/api/api_server.go b/beacon/light/api/api_server.go
index 4cb301ea10..da044f4b2d 100755
--- a/beacon/light/api/api_server.go
+++ b/beacon/light/api/api_server.go
@@ -31,7 +31,6 @@ type ApiServer struct {
 	api           *BeaconLightApi
 	eventCallback func(event request.Event)
 	unsubscribe   func()
-	lastId        uint64
 }
 
 // NewApiServer creates a new ApiServer.