diff --git a/serverstatus.go b/serverstatus.go
index b6f5d8e..723423f 100644
--- a/serverstatus.go
+++ b/serverstatus.go
@@ -21,6 +21,9 @@ const (
 	ServerStatusSespending  ServerStatus = "suspending"
 	ServerStatusSespended   ServerStatus = "suspended"
 	ServerStatusResuming    ServerStatus = "resuming"
+
+	ServerStatusError         ServerStatus = "error"
+	ServerStatusScheduleError ServerStatus = "schedule-error"
 )
 
 func ServerStatusFromLock(status, lock string) ServerStatus {
@@ -61,7 +64,6 @@ func ServerStatusFromTask(t *Task) ServerStatus {
 		if t.Exitstatus == TaskExitStatusOK {
 			return ServerStatusSespended
 		}
-		return ServerStatusUnknown
 	case "qmresume":
 		if t.Status == TaskStatusRunning {
 			return ServerStatusResuming
@@ -69,7 +71,6 @@ func ServerStatusFromTask(t *Task) ServerStatus {
 		if t.Exitstatus == TaskExitStatusOK {
 			return ServerStatusRunning
 		}
-		return ServerStatusUnknown
 	case "qmclone", "qmcreate":
 		if t.Status == TaskStatusRunning {
 			return ServerStatusInitializing
@@ -77,7 +78,6 @@ func ServerStatusFromTask(t *Task) ServerStatus {
 		if t.Exitstatus == TaskExitStatusOK {
 			return ServerStatusStopped
 		}
-		return ServerStatusUnknown
 	case "qmreboot", "qmreset":
 		if t.Status == TaskStatusRunning {
 			return ServerStatusRebooting
@@ -85,7 +85,6 @@ func ServerStatusFromTask(t *Task) ServerStatus {
 		if t.Exitstatus == TaskExitStatusOK {
 			return ServerStatusRunning
 		}
-		return ServerStatusUnknown
 	case "qmstart":
 		if t.Status == TaskStatusRunning {
 			return ServerStatusStarting
@@ -101,12 +100,10 @@ func ServerStatusFromTask(t *Task) ServerStatus {
 		if t.Exitstatus == TaskExitStatusOK {
 			return ServerStatusStopped
 		}
-		return ServerStatusUnknown
 	case "qmdestroy":
 		if t.Status == TaskStatusRunning {
 			return ServerStatusDeleting
 		}
-		return ServerStatusUnknown
 	}
 	return ServerStatusUnknown
 }