diff --git a/src/libnmc-setting/nm-meta-setting-desc.c b/src/libnmc-setting/nm-meta-setting-desc.c
index 9d8a02f2d3..1468b0aa00 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.c
+++ b/src/libnmc-setting/nm-meta-setting-desc.c
@@ -5635,7 +5635,7 @@ static const NMMetaPropertyInfo *const property_infos_CONNECTION[] = {
         .property_type =                &_pt_gobject_enum,
     ),
     PROPERTY_INFO_WITH_DESC (NM_SETTING_CONNECTION_DOWN_ON_POWEROFF,
-        .property_type =                &_pt_gobject_ternary,
+        .property_type =                &_pt_gobject_enum,
     ),
     PROPERTY_INFO_WITH_DESC (NM_SETTING_CONNECTION_SECONDARIES,
         .describe_message =
diff --git a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
index b35a96a442..ed113de01b 100644
--- a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
+++ b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
@@ -689,8 +689,8 @@
                   values="default (-1), false (0), true (1)" />
         <property name="down-on-poweroff"
                   nmcli-description="Whether the connection will be brought down before the system is powered off.  The default value is &quot;default&quot; (-1). When the default value is specified, then the global value from NetworkManager configuration is looked up, if not set, it is considered as &quot;no&quot; (0)."
-                  format="ternary"
-                  values="true/yes/on, false/no/off, default/unknown" />
+                  format="choice (NMSettingConnectionDownOnPoweroff)"
+                  values="default (-1), no (0), yes (1)" />
         <property name="secondaries"
                   nmcli-description="List of connection UUIDs that should be activated when the base connection itself is activated. Currently, only VPN connections are supported."
                   format="list of strings" />