diff --git a/introspection/org.freedesktop.NetworkManager.Settings.Connection.xml b/introspection/org.freedesktop.NetworkManager.Settings.Connection.xml
index 13f626c339..2cbb6c2ebc 100644
--- a/introspection/org.freedesktop.NetworkManager.Settings.Connection.xml
+++ b/introspection/org.freedesktop.NetworkManager.Settings.Connection.xml
@@ -170,6 +170,15 @@
     -->
     <property name="Flags" type="u" access="read"/>
 
+    <!--
+        Filename:
+
+        File that stores the connection in case the connection is file-backed.
+
+        Since: 1.12
+    -->
+    <property name="Filename" type="s" access="read"/>
+
     <!--
         PropertiesChanged:
         @properties: A dictionary mapping property names to variant boxed values.
diff --git a/src/settings/nm-settings-connection.c b/src/settings/nm-settings-connection.c
index 6526abc76f..50cc14274d 100644
--- a/src/settings/nm-settings-connection.c
+++ b/src/settings/nm-settings-connection.c
@@ -3189,8 +3189,9 @@ static const NMDBusInterfaceInfoExtended interface_info_settings_connection = {
 			&signal_info_removed,
 		),
 		.properties = NM_DEFINE_GDBUS_PROPERTY_INFOS (
-			NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Unsaved", "b",  NM_SETTINGS_CONNECTION_UNSAVED),
-			NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE   ("Flags",   "u",  NM_SETTINGS_CONNECTION_FLAGS),
+			NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Unsaved",  "b",  NM_SETTINGS_CONNECTION_UNSAVED),
+			NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE   ("Flags",    "u",  NM_SETTINGS_CONNECTION_FLAGS),
+			NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE   ("Filename", "s",  NM_SETTINGS_CONNECTION_FILENAME),
 		),
 	),
 	.legacy_property_changed = TRUE,
diff --git a/src/settings/nm-settings-connection.h b/src/settings/nm-settings-connection.h
index 70518687c2..cd64f9762d 100644
--- a/src/settings/nm-settings-connection.h
+++ b/src/settings/nm-settings-connection.h
@@ -42,11 +42,11 @@
 
 /* Properties */
 #define NM_SETTINGS_CONNECTION_UNSAVED  "unsaved"
+#define NM_SETTINGS_CONNECTION_FLAGS    "flags"
+#define NM_SETTINGS_CONNECTION_FILENAME "filename"
 
 /* Internal properties */
 #define NM_SETTINGS_CONNECTION_READY    "ready"
-#define NM_SETTINGS_CONNECTION_FLAGS    "flags"
-#define NM_SETTINGS_CONNECTION_FILENAME "filename"
 
 /**
  * NMSettingsConnectionIntFlags: