diff --git a/src/controller/artifact/annotation/v1alpha1.go b/src/controller/artifact/annotation/v1alpha1.go
index 15c464ab2..6ca4605e1 100644
--- a/src/controller/artifact/annotation/v1alpha1.go
+++ b/src/controller/artifact/annotation/v1alpha1.go
@@ -92,6 +92,7 @@ func parseV1alpha1Icon(artifact *artifact.Artifact, manifest *v1.Manifest, reg r
 	if err != nil {
 		return err
 	}
+	defer icon.Close()
 	// check the size of the size <= 1MB
 	data, err := io.ReadAll(io.LimitReader(icon, 1<<20))
 	if err != nil {