diff --git a/roles/standalone/README.md b/roles/standalone/README.md
index 5e2f9c795..d4e81c823 100644
--- a/roles/standalone/README.md
+++ b/roles/standalone/README.md
@@ -14,6 +14,7 @@ Role Variables
 
 - standalone_config: <'standalone_config.yaml.j2'> -- jinja template of the deployment configuration
 - standalone_network: <'192.168.24'> -- First three octets of the network used
+- standalone_network_prefix: <'24'> --  The subnet size for the standalone deployment network
 - standalone_ip: <'192.168.24.1'> --  The IP address of the standalone deployment
 - standalone_interface: <'br-ex'> --  The interface for the standalone deployment
 
diff --git a/roles/standalone/defaults/main.yml b/roles/standalone/defaults/main.yml
index 11e8fab6f..d7ff98778 100644
--- a/roles/standalone/defaults/main.yml
+++ b/roles/standalone/defaults/main.yml
@@ -1,6 +1,7 @@
 ---
 standalone_config: standalone_config.yaml.j2
 standalone_network: 192.168.24
+standalone_network_prefix: 24
 standalone_ip: 192.168.24.1
 standalone_interface: br-ex
 
diff --git a/roles/standalone/templates/standalone.sh.j2 b/roles/standalone/templates/standalone.sh.j2
index e73439b35..f0c4b3b3e 100644
--- a/roles/standalone/templates/standalone.sh.j2
+++ b/roles/standalone/templates/standalone.sh.j2
@@ -1,6 +1,6 @@
 sudo openstack tripleo deploy \
   --templates \
-  --local-ip={{ standalone_ip }} \
+  --local-ip={{ standalone_ip }}/{{ standalone_network_prefix }} \
   -e {{ overcloud_templates_path }}/environments/standalone.yaml \
   -r {{ overcloud_templates_path }}/roles/{{ standalone_role }} \
   -e "{{ working_dir }}/standalone_parameters.yaml" \
diff --git a/roles/standalone/templates/standalone_config.yaml.j2 b/roles/standalone/templates/standalone_config.yaml.j2
index 998eeeeb5..94d198db2 100644
--- a/roles/standalone/templates/standalone_config.yaml.j2
+++ b/roles/standalone/templates/standalone_config.yaml.j2
@@ -19,15 +19,15 @@ parameter_defaults:
   DockerInsecureRegistryAddress:
   - {{ standalone_ip }}:8787
   MasqueradeNetworks:
-    {{ standalone_network }}.0/24:
-    - {{ standalone_network }}.0/24
+    {{ standalone_network }}.0/{{ standalone_network_prefix }}:
+    - {{ standalone_network }}.0/{{ standalone_network_prefix }}
   NeutronPublicInterface: {{ standalone_interface }}
   StandaloneCtlplaneLocalSubnet: ctlplane-subnet
   StandaloneCtlplaneSubnets:
     ctlplane-subnet:
       DhcpRangeEnd: {{ standalone_network }}.40
       DhcpRangeStart: {{ standalone_network }}.20
-      NetworkCidr: {{ standalone_network }}.0/24
+      NetworkCidr: {{ standalone_network }}.0/{{ standalone_network_prefix }}
       NetworkGateway: {{ standalone_ip }}
   StandaloneEnableRoutedNetworks: false
   StandaloneHomeDir: {{ working_dir }}