diff --git a/pkg/service/service.go b/pkg/service/service.go
index 17ef8280..4d8bb05d 100644
--- a/pkg/service/service.go
+++ b/pkg/service/service.go
@@ -16,7 +16,8 @@ import (
 
 // GetService retrieves a service container based on a label. If prompt is true
 // and the retrievd count of service containers does not match 1, then a prompt
-// is presented to let the user choose. A count of 0 is handled gracefully.
+// is presented to let the user choose. An error is returned when no service is
+// found.
 func GetServiceByLabel(c context.Context, cl *client.Client, label string, prompt bool) (swarm.Service, error) {
 	services, err := cl.ServiceList(c, types.ServiceListOptions{})
 	if err != nil {