diff --git a/doc/source/ovn/dhcp_opts.rst b/doc/source/ovn/dhcp_opts.rst
index a74943138fa..d4bd459a161 100644
--- a/doc/source/ovn/dhcp_opts.rst
+++ b/doc/source/ovn/dhcp_opts.rst
@@ -82,7 +82,7 @@ Option name / code  OVN value
 ==================  =============
 dns-server          dns_server
 domain-search       domain_search
-ia-addr             ip_addr
+ia-addr             ia_addr
 server-id           server_id
 2                   server_id
 5                   ia_addr
diff --git a/neutron/common/ovn/constants.py b/neutron/common/ovn/constants.py
index 4ad1845eeb2..ea23b2ec5c1 100644
--- a/neutron/common/ovn/constants.py
+++ b/neutron/common/ovn/constants.py
@@ -159,7 +159,7 @@ SUPPORTED_DHCP_OPTS_MAPPING = {
     6: {'server-id': 'server_id',
         'dns-server': 'dns_server',
         'domain-search': 'domain_search',
-        'ia-addr': 'ip_addr',
+        'ia-addr': 'ia_addr',
         '2': 'server_id',
         '5': 'ia_addr',
         '24': 'domain_search',