diff --git a/omaha/client/update_engine_events.go b/omaha/client/update_engine_events.go
index 0dfdc83..e20a70a 100644
--- a/omaha/client/update_engine_events.go
+++ b/omaha/client/update_engine_events.go
@@ -32,10 +32,6 @@ var (
 		Type:   omaha.EventTypeUpdateDownloadFinished,
 		Result: omaha.EventResultSuccess,
 	}
-	EventInstallStarted = &omaha.EventRequest{
-		Type:   omaha.EventTypeInstallStarted,
-		Result: omaha.EventResultSuccess,
-	}
 	EventInstalled = &omaha.EventRequest{
 		Type:   omaha.EventTypeUpdateComplete,
 		Result: omaha.EventResultSuccess,