diff --git a/pkg/pickle/helpers/bitmask-root b/pkg/pickle/helpers/bitmask-root
index cbd33ad185a3a6f0335c41f5a9394d75e411fd5f..45544d8d60dda05b21ccca1894085ce0c3b7017b 100644
--- a/pkg/pickle/helpers/bitmask-root
+++ b/pkg/pickle/helpers/bitmask-root
@@ -521,7 +521,7 @@ def get_gateways(gateways):
     if not result:
         bail("ERROR: No valid gateways specified")
     else:
-        return result
+        return list(result)
 
 
 def get_default_device():