diff --git a/ci/roles/router/tasks/main.yml b/ci/roles/router/tasks/main.yml
index baa70ea9..fb4cc168 100644
--- a/ci/roles/router/tasks/main.yml
+++ b/ci/roles/router/tasks/main.yml
@@ -384,7 +384,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.100
 
 - name: Gather routers info
@@ -412,7 +412,7 @@
      external_gateway_info:
         network: "{{ external_network_name }}"
         external_fixed_ips:
-           - subnet: shade_subnet5
+           - subnet_id: shade_subnet5
              ip: 10.6.6.100
            - subnet: shade_subnet5
              ip: 10.6.6.101
@@ -426,7 +426,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.100
         - subnet: shade_subnet5
           ip: 10.6.6.101
@@ -461,7 +461,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.101
 
 - name: Update router (remove external fixed ips) again
@@ -473,7 +473,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.101
   register: router
 
@@ -506,7 +506,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.101
 
 - name: Gather routers info
@@ -533,7 +533,7 @@
          - shade_subnet1
      network: "{{ external_network_name }}"
      external_fixed_ips:
-        - subnet: shade_subnet5
+        - subnet_id: shade_subnet5
           ip: 10.6.6.101
   register: router
 
diff --git a/plugins/modules/router.py b/plugins/modules/router.py
index c82819f4..de1535ce 100644
--- a/plugins/modules/router.py
+++ b/plugins/modules/router.py
@@ -461,7 +461,7 @@ class RouterModule(OpenStackModule):
         if ext_fixed_ips:
             for iface in ext_fixed_ips:
                 subnet = self.conn.network.find_subnet(
-                    iface['subnet'], ignore_missing=False, **filters)
+                    iface['subnet_id'], ignore_missing=False, **filters)
                 fip = dict(subnet_id=subnet.id)
                 if 'ip_address' in iface:
                     fip['ip_address'] = iface['ip_address']