diff --git a/host/host_test.go b/host/host_test.go
index 1b34f69..b4db399 100644
--- a/host/host_test.go
+++ b/host/host_test.go
@@ -86,9 +86,9 @@ func TestHostInfoStat_String(t *testing.T) {
 		BootTime: 1447040000,
 		HostID:   "edfd25ff-3c9c-b1a4-e660-bd826495ad35",
 	}
-	e := `{"hostname":"test","uptime":3000,"bootTime":1447040000,"procs":100,"os":"linux","platform":"ubuntu","platformFamily":"","platformVersion":"","kernelVersion":"","virtualizationSystem":"","virtualizationRole":"","hostid":"edfd25ff-3c9c-b1a4-e660-bd826495ad35"}`
+	e := `{"hostname":"test","uptime":3000,"bootTime":1447040000,"procs":100,"os":"linux","platform":"ubuntu","platformFamily":"","platformVersion":"","kernelVersion":"","kernelArch":"","virtualizationSystem":"","virtualizationRole":"","hostid":"edfd25ff-3c9c-b1a4-e660-bd826495ad35"}`
 	if e != fmt.Sprintf("%v", v) {
-		t.Errorf("HostInfoStat string is invalid: %v", v)
+		t.Errorf("HostInfoStat string is invalid:\ngot  %v\nwant %v", v, e)
 	}
 }