diff --git a/main.go b/main.go
index f2fe37f..91cf590 100644
--- a/main.go
+++ b/main.go
@@ -31,7 +31,6 @@ type Conf struct {
 	UploadInterface       string `yaml:"upload_interface"`
 	ThrottlePingThreshold int64  `yaml:"throttle_ping_threshold"`
 	TryRestoringAfter     int    `yaml:"try_restoring_after"`
-	PingInterface         string `yaml:"ping_interface"`
 }
 
 var (
@@ -85,7 +84,7 @@ func doPing(host string, count int, interval time.Duration) (*ping.Statistics, e
 	pinger.Interval = interval
 
 	// get interface
-	nif, err := net.InterfaceByName(conf.PingInterface)
+	nif, err := net.InterfaceByName(conf.UploadInterface)
 	if err != nil {
 		return nil, err
 	}
@@ -94,7 +93,7 @@ func doPing(host string, count int, interval time.Duration) (*ping.Statistics, e
 		return nil, err
 	}
 	if len(addr) == 0 {
-		return nil, fmt.Errorf("interface %s has no addressed assigned", conf.PingInterface)
+		return nil, fmt.Errorf("interface %s has no addressed assigned", conf.UploadInterface)
 	}
 	pinger.Source = addr[0].(*net.IPNet).IP.String()