diff --git a/api/client/stack/opts.go b/api/client/stack/opts.go
index 5cabe5c432..81af1dfe2f 100644
--- a/api/client/stack/opts.go
+++ b/api/client/stack/opts.go
@@ -35,6 +35,7 @@ func loadBundlefile(stderr io.Writer, namespace string, path string) (*bundlefil
 	if err != nil {
 		return nil, err
 	}
+	defer reader.Close()
 
 	bundle, err := bundlefile.LoadFile(reader)
 	if err != nil {