diff --git a/src/aleph/vm/haproxy.py b/src/aleph/vm/haproxy.py
index d6426ba6..72e0d2bc 100644
--- a/src/aleph/vm/haproxy.py
+++ b/src/aleph/vm/haproxy.py
@@ -256,6 +256,10 @@ def update_haproxy_backend(socket_path, backend_name, instances, map_file_path,
     for instance in instances:
         server_name = instance["name"]
         local_ip = instance["ipv4"]["local"]
+
+        if local_ip == None:
+            continue
+
         # custom domain name doesn't return the ip addr but the network range
         addr = local_ip.split("/")[0]
         if addr.endswith(".1"):
diff --git a/src/aleph/vm/orchestrator/views/__init__.py b/src/aleph/vm/orchestrator/views/__init__.py
index 0cee1dfa..113521ca 100644
--- a/src/aleph/vm/orchestrator/views/__init__.py
+++ b/src/aleph/vm/orchestrator/views/__init__.py
@@ -207,16 +207,18 @@ async def list_executions_v2(request: web.Request) -> web.Response:
     return web.json_response(
         {
             item_hash: {
-                "networking": {
-                    "ipv4_network": execution.vm.tap_interface.ip_network,
-                    "host_ipv4": pool.network.host_ipv4,
-                    "ipv6_network": execution.vm.tap_interface.ipv6_network,
-                    "ipv6_ip": execution.vm.tap_interface.guest_ipv6.ip,
-                    "ipv4_ip": execution.vm.tap_interface.guest_ip.ip,
-                    "mapped_ports": execution.mapped_ports,
-                }
-                if execution.vm and execution.vm.tap_interface
-                else {},
+                "networking": (
+                    {
+                        "ipv4_network": execution.vm.tap_interface.ip_network,
+                        "host_ipv4": pool.network.host_ipv4,
+                        "ipv6_network": execution.vm.tap_interface.ipv6_network,
+                        "ipv6_ip": execution.vm.tap_interface.guest_ipv6.ip,
+                        "ipv4_ip": execution.vm.tap_interface.guest_ip.ip,
+                        "mapped_ports": execution.mapped_ports,
+                    }
+                    if execution.vm and execution.vm.tap_interface
+                    else {}
+                ),
                 "status": execution.times,
                 "running": execution.is_running,
             }