diff --git a/provider/swarm.go b/provider/swarm.go
index 1e726d1..534cdd7 100644
--- a/provider/swarm.go
+++ b/provider/swarm.go
@@ -96,7 +96,7 @@ func (p SwarmProvider) Scale(serviceId string, target int, direction bool) error
 
 // This function validate if a request is acceptable or not.
 func (p *SwarmProvider) isAcceptable(tasks []swarm.Task, target int, direction bool) error {
-	if p.calculateActiveTasks(tasks) < target && direction == false {
+	if p.calculateActiveTasks(tasks) < target || p.calculateActiveTasks(tasks) < 2 && direction == false {
 		return errors.New(fmt.Sprintf("I can not scale down because it has only %d running.", target))
 	}
 	return nil