diff --git a/omaha/omaha.go b/omaha/omaha.go
index 1aa2a97..279a311 100644
--- a/omaha/omaha.go
+++ b/omaha/omaha.go
@@ -245,6 +245,7 @@ var EventTypes = map[int]string{
 	100: "setup failure",
 	102: "COM server failure",
 	103: "setup update failure",
+	800: "ping",
 }
 
 var EventResults = map[int]string{