diff --git a/src/modules/tool/controller/mml.go b/src/modules/tool/controller/mml.go
index 86bb05f1..caafe85e 100644
--- a/src/modules/tool/controller/mml.go
+++ b/src/modules/tool/controller/mml.go
@@ -80,8 +80,10 @@ func (s MMLController) Command(c *gin.Context) {
 		c.JSON(200, resp.ErrMsg(err.Error()))
 		return
 	}
-	telnetClient.RunCMD("\r\n")
 	defer telnetClient.Close()
+	if body.NeType != "IMS" {
+		telnetClient.RunCMD("\r\n")
+	}
 	if body.NeType == "UPF" && body.Type == "Standard" {
 		telnetClient.WindowChange(1024, 1024)
 	}