diff --git a/ansible/kolla-bifrost-hostvars.yml b/ansible/kolla-bifrost-hostvars.yml
index bb0ca2539..b4ab4fb48 100644
--- a/ansible/kolla-bifrost-hostvars.yml
+++ b/ansible/kolla-bifrost-hostvars.yml
@@ -22,7 +22,7 @@
       # If the admin network does not have a gateway defined and seed SNAT is
       # enabled, use the seed as a gateway to allow external access until other
       # networks have been configured. Otherwise, do not set any gateway.
-      ipv4_gateway: "{{ admin_oc_net_name | net_gateway or admin_oc_net_name | net_ip(seed_host) if seed_enable_snat | bool }}"
+      ipv4_gateway: "{{ (admin_oc_net_name | net_gateway) or (admin_oc_net_name | net_ip(seed_host) if seed_enable_snat | bool) }}"
       ipv4_nameserver: "{{ resolv_nameservers }}"
       network_mtu: "{{ admin_oc_net_name | net_mtu or '1500' }}"
       vlan_id: "{{ '' if admin_oc_net_name == provision_oc_net_name else (admin_oc_net_name | net_vlan) }}"
diff --git a/releasenotes/notes/fix-bifrost-gateway-b4bc8a0396dfa935.yaml b/releasenotes/notes/fix-bifrost-gateway-b4bc8a0396dfa935.yaml
new file mode 100644
index 000000000..b2075e90a
--- /dev/null
+++ b/releasenotes/notes/fix-bifrost-gateway-b4bc8a0396dfa935.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes gateway assignment when seed SNAT is disabled. In this circumstance
+    Bifrost was generating ConfigDrive data with the default gateway unset even
+    when one is available on the admin network.