diff --git a/cli/app/cp.go b/cli/app/cp.go
index 1515762e7..a4476abc8 100644
--- a/cli/app/cp.go
+++ b/cli/app/cp.go
@@ -89,7 +89,7 @@ var appCpCommand = &cli.Command{
 			logrus.Fatal(err)
 		}
 
-		if len(containers) > 1 {
+		if len(containers) != 1 {
 			logrus.Fatalf("expected 1 container but got %v", len(containers))
 		}
 		container := containers[0]