diff --git a/apex/sign_virt_apex.py b/apex/sign_virt_apex.py
index a42f5ec..8257aae 100644
--- a/apex/sign_virt_apex.py
+++ b/apex/sign_virt_apex.py
@@ -231,6 +231,9 @@
         if additional_descriptors:
             for image in additional_descriptors:
                 cmd.extend(['--include_descriptors_from_image', image])
+
+        if 'Rollback Index' in info:
+            cmd.extend(['--rollback_index', info['Rollback Index']])
         RunCommand(args, cmd)