diff --git a/tools/test/topos/bmv2-demo-cfg.json b/tools/test/topos/bmv2-demo-cfg.json
index afdbf5b..6c745b5 100644
--- a/tools/test/topos/bmv2-demo-cfg.json
+++ b/tools/test/topos/bmv2-demo-cfg.json
@@ -127,7 +127,7 @@
   "hosts": {
     "00:00:00:00:00:01/-1": {
       "basic": {
-        "location": "bmv2:192.168.123.4:9090#11/5",
+        "locations": ["bmv2:192.168.123.4:9090#11/5"],
         "ips": [
           "10.0.0.1"
         ],
@@ -138,7 +138,7 @@
     },
     "00:00:00:00:00:02/-1": {
       "basic": {
-        "location": "bmv2:192.168.123.4:9091#12/5",
+        "locations": ["bmv2:192.168.123.4:9091#12/5"],
         "ips": [
           "10.0.0.2"
         ],
@@ -149,7 +149,7 @@
     },
     "00:00:00:00:00:03/-1": {
       "basic": {
-        "location": "bmv2:192.168.123.4:9092#13/5",
+        "locations": ["bmv2:192.168.123.4:9092#13/5"],
         "ips": [
           "10.0.0.3"
         ],