diff --git a/rally/rally-plugins/netcreate-boot/netcreate_boot.yml b/rally/rally-plugins/netcreate-boot/netcreate_boot.yml
index fa608b117..a63dce93e 100644
--- a/rally/rally-plugins/netcreate-boot/netcreate_boot.yml
+++ b/rally/rally-plugins/netcreate-boot/netcreate_boot.yml
@@ -1,6 +1,7 @@
 {% set sla_max_avg_duration = sla_max_avg_duration or 60 %}
 {% set sla_max_failure = sla_max_failure or 0 %}
 {% set sla_max_seconds = sla_max_seconds or 60 %}
+{% set num_networks = num_networks or 1 %}
 ---
 BrowbeatPlugin.create_network_nova_boot:
   -
diff --git a/rally/rally-plugins/subnet-router-create/subnet-router-create.yml b/rally/rally-plugins/subnet-router-create/subnet-router-create.yml
index ef2c45074..d4d1b80df 100644
--- a/rally/rally-plugins/subnet-router-create/subnet-router-create.yml
+++ b/rally/rally-plugins/subnet-router-create/subnet-router-create.yml
@@ -1,6 +1,7 @@
 {% set sla_max_avg_duration = sla_max_avg_duration or 60 %}
 {% set sla_max_failure = sla_max_failure or 0 %}
 {% set sla_max_seconds = sla_max_seconds or 60 %}
+{% set num_networks = num_networks or 1 %}
 ---
 NeutronPlugin.create_router_and_net:
   -