diff --git a/core/installer/soft/repoio.go b/core/installer/soft/repoio.go
index a0b0459..f4c05bb 100644
--- a/core/installer/soft/repoio.go
+++ b/core/installer/soft/repoio.go
@@ -295,6 +295,7 @@
 	if err != nil {
 		return err
 	}
+	defer out.Close()
 	serialized, err := yaml.Marshal(data)
 	if err != nil {
 		return err