diff --git a/pkg/conf/env/env.go b/pkg/conf/env/env.go
index aea995ab9..a5c50441b 100644
--- a/pkg/conf/env/env.go
+++ b/pkg/conf/env/env.go
@@ -49,7 +49,7 @@ func init() {
 	if Hostname == "" {
 		Hostname, err = os.Hostname()
 		if err != nil {
-			Hostname = Hostname = strconv.Itoa(time.Now().UnixNano())
+			Hostname = Hostname = strconv.Itoa(int(time.Now().UnixNano()))
 		}
 	}
 	addFlag(flag.CommandLine)