diff --git a/openstack/ironic-python-agent/ironic-python-agent.spec.j2 b/openstack/ironic-python-agent/ironic-python-agent.spec.j2
index 00a0fc660..aee10fb54 100644
--- a/openstack/ironic-python-agent/ironic-python-agent.spec.j2
+++ b/openstack/ironic-python-agent/ironic-python-agent.spec.j2
@@ -84,6 +84,7 @@ Summary:        Ironic Python Agent Ramdisk - Documentation
 Group:          Documentation/HTML
 BuildRequires:  {{ py3('Sphinx') }}
 BuildRequires:  {{ py3('openstackdocstheme') }}
+BuildRequires:  {{ py3('sphinxcontrib-apidoc') }}
 BuildRequires:  {{ py3('sphinxcontrib-httpdomain') }}
 BuildRequires:  {{ py3('sphinxcontrib-pecanwsme') }}