diff --git a/apex/apex.go b/apex/apex.go
index d879883..aad7c65 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -662,6 +662,7 @@
 		Input:       unsignedOutputFile,
 		Args: map[string]string{
 			"certificates": strings.Join([]string{certificate.Pem.String(), certificate.Key.String()}, " "),
+			"flags":        "-a 4096", //alignment
 		},
 	})
 }