diff --git a/lib/ansible/modules/cloud/openstack/os_router.py b/lib/ansible/modules/cloud/openstack/os_router.py
index 46b2297ccf7..d27f40af77e 100644
--- a/lib/ansible/modules/cloud/openstack/os_router.py
+++ b/lib/ansible/modules/cloud/openstack/os_router.py
@@ -180,6 +180,16 @@ except ImportError:
 
 from distutils.version import StrictVersion
 
+ROUTER_INTERFACE_OWNERS = set([
+    'network:router_interface',
+    'network:router_interface_distributed',
+    'network:ha_router_replicated_interface'
+])
+
+def _router_internal_interfaces(cloud, router):
+    for port in cloud.list_router_interfaces(router, 'internal'):
+        if port['device_owner'] in ROUTER_INTERFACE_OWNERS:
+            yield port
 
 def _needs_update(cloud, module, router, network, internal_subnet_ids):
     """Decide if the given router needs an update.
@@ -221,7 +231,7 @@ def _needs_update(cloud, module, router, network, internal_subnet_ids):
     # check internal interfaces
     if module.params['interfaces']:
         existing_subnet_ids = []
-        for port in cloud.list_router_interfaces(router, 'internal'):
+        for port in _router_internal_interfaces(cloud, router):
             if 'fixed_ips' in port:
                 for fixed_ip in port['fixed_ips']:
                     existing_subnet_ids.append(fixed_ip['subnet_id'])
@@ -377,7 +387,7 @@ def main():
                     # just detach all existing internal interfaces and attach the new.
                     elif internal_ids:
                         router = updated_router
-                        ports = cloud.list_router_interfaces(router, 'internal')
+                        ports = _router_internal_interfaces(cloud, router)
                         for port in ports:
                             cloud.remove_router_interface(router, port_id=port['id'])
                         for internal_subnet_id in internal_ids:
@@ -394,7 +404,7 @@ def main():
             else:
                 # We need to detach all internal interfaces on a router before
                 # we will be allowed to delete it.
-                ports = cloud.list_router_interfaces(router, 'internal')
+                ports = _router_internal_interfaces(cloud, router)
                 router_id = router['id']
                 for port in ports:
                     cloud.remove_router_interface(router, port_id=port['id'])