diff --git a/src/backends/meta-monitor-manager.c b/src/backends/meta-monitor-manager.c
index 976ecbf54..85441f76e 100644
--- a/src/backends/meta-monitor-manager.c
+++ b/src/backends/meta-monitor-manager.c
@@ -1417,6 +1417,7 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
       GVariantBuilder modes_builder;
       GVariantBuilder monitor_properties_builder;
       GList *k;
+      gboolean is_builtin;
 
       current_mode = meta_monitor_get_current_mode (monitor);
       preferred_mode = meta_monitor_get_preferred_mode (monitor);
@@ -1458,6 +1459,11 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
                                  g_variant_new_boolean (is_underscanning));
         }
 
+      is_builtin = meta_monitor_is_laptop_panel (monitor);
+      g_variant_builder_add (&monitor_properties_builder, "{sv}",
+                             "is_builtin",
+                             g_variant_new_boolean (is_builtin));
+
       g_variant_builder_add (&monitors_builder, MONITOR_FORMAT,
                              monitor_spec->connector,
                              monitor_spec->vendor,
diff --git a/src/org.gnome.Mutter.DisplayConfig.xml b/src/org.gnome.Mutter.DisplayConfig.xml
index 961ed0306..c916b36ea 100644
--- a/src/org.gnome.Mutter.DisplayConfig.xml
+++ b/src/org.gnome.Mutter.DisplayConfig.xml
@@ -331,6 +331,9 @@
 	    - "max_screen_size" (ii): the maximum size a screen may have
 				      (absence of this means unlimited screen
 				      size)
+	    - "is_builtin" (b): whether the monitor is built in, e.g. a
+				laptop panel (absence of this means it is
+				not built in)
 
         Possible mode flags:
 	  1 : preferred mode