diff --git a/ecs/client.go b/ecs/client.go
index 2d1eda9..2b1a3ad 100644
--- a/ecs/client.go
+++ b/ecs/client.go
@@ -104,7 +104,7 @@ func (client *Client) WaitUntilGood(ctx context.Context, service *types.Service,
 	}
 
 	var deadline time.Duration
-	if timeout == nil {
+	if timeout != nil {
 		deadline = *timeout
 	} else {
 		deadline = defaultTimeout