diff --git a/mgw/osmo-mgw.cfg b/mgw/osmo-mgw.cfg
index 8428cd3..1c5cfce 100644
--- a/mgw/osmo-mgw.cfg
+++ b/mgw/osmo-mgw.cfg
@@ -47,3 +47,5 @@
   number endpoints 31
   allow-transcoding
   osmux off
+  osmux bind-ip 127.0.0.1
+  osmux bind-ip-v6 ::1