diff --git a/pkg/scpacket/scpacket.go b/pkg/scpacket/scpacket.go
index 0a7d7b95..73c05697 100644
--- a/pkg/scpacket/scpacket.go
+++ b/pkg/scpacket/scpacket.go
@@ -35,7 +35,7 @@ type FeInputPacketType struct {
 	CK          base.CommandKey      `json:"ck"`
 	Remote      sstore.RemotePtrType `json:"remote"`
 	InputData64 string               `json:"inputdata64"`
-	SigNum      int                  `json:"signum,omitempty"`
+	SigName     string               `json:"signame,omitempty"`
 	WinSize     *packet.WinSize      `json:"winsize,omitempty"`
 }
 
diff --git a/pkg/scws/scws.go b/pkg/scws/scws.go
index a64d6772..7326aa4b 100644
--- a/pkg/scws/scws.go
+++ b/pkg/scws/scws.go
@@ -235,10 +235,10 @@ func sendCmdInput(pk *scpacket.FeInputPacketType) error {
 			return err
 		}
 	}
-	if pk.SigNum != 0 || pk.WinSize != nil {
+	if pk.SigName != "" || pk.WinSize != nil {
 		siPk := packet.MakeSpecialInputPacket()
 		siPk.CK = pk.CK
-		siPk.SigNum = pk.SigNum
+		siPk.SigName = pk.SigName
 		siPk.WinSize = pk.WinSize
 		err = msh.SendSpecialInput(siPk)
 		if err != nil {