diff --git a/cloud-init-no-empty-resolv.patch b/cloud-init-no-empty-resolv.patch
index 349f254..1eb9365 100644
--- a/cloud-init-no-empty-resolv.patch
+++ b/cloud-init-no-empty-resolv.patch
@@ -4,7 +4,7 @@
              content.add_nameserver(nameserver)
          for searchdomain in network_state.dns_searchdomains:
              content.add_search_domain(searchdomain)
-+        if not content:
++        if not str(content):
 +            return content
          header = _make_header(';')
          content_str = str(content)