diff --git a/data/qmi-service-nas.json b/data/qmi-service-nas.json
index 970ab8d..1dc8cc8 100644
--- a/data/qmi-service-nas.json
+++ b/data/qmi-service-nas.json
@@ -827,12 +827,12 @@
                                         "format" : "guint16" },
                                       { "name"   : "MNC",
                                         "format" : "guint16" } ] },
-                    { "name"          : "Preference Duration",
+                    { "name"          : "Change Duration",
                       "id"            : "0x17",
                       "mandatory"     : "no",
                       "type"          : "TLV",
                       "format"        : "guint8",
-                      "public-format" : "QmiNasPreferenceDuration" },
+                      "public-format" : "QmiNasChangeDuration" },
                     { "name"          : "Service Domain Preference",
                       "id"            : "0x18",
                       "mandatory"     : "no",
diff --git a/libqmi-glib/qmi-enums-nas.h b/libqmi-glib/qmi-enums-nas.h
index 7b4a030..8dbf804 100644
--- a/libqmi-glib/qmi-enums-nas.h
+++ b/libqmi-glib/qmi-enums-nas.h
@@ -589,6 +589,18 @@ typedef enum {
     QMI_NAS_NETWORK_SELECTION_PREFERENCE_MANUAL    = 0x01
 } QmiNasNetworkSelectionPreference;
 
+/**
+ * QmiNasChangeDuration:
+ * @QMI_NAS_CHANGE_DURATION_PERMANENT: Permanent.
+ * @QMI_NAS_CHANGE_DURATION_POWER_CYCLE: Until the next power cycle.
+ *
+ * Duration of the change setting.
+ */
+typedef enum {
+    QMI_NAS_CHANGE_DURATION_POWER_CYCLE = 0x00,
+    QMI_NAS_CHANGE_DURATION_PERMANENT   = 0x01
+} QmiNasChangeDuration;
+
 /**
  * QmiNasServiceDomainPreference:
  * @QMI_NAS_SERVICE_DOMAIN_PREFERENCE_CS_ONLY: Circuit-switched only.