diff --git a/include/gz/gui/Plugin.hh b/include/gz/gui/Plugin.hh
index ede6220be..c025ed51f 100644
--- a/include/gz/gui/Plugin.hh
+++ b/include/gz/gui/Plugin.hh
@@ -35,6 +35,9 @@ namespace gz
 {
   namespace gui
   {
+    /// \brief Namespace for all plugins
+    namespace plugins {}
+
     class PluginPrivate;
 
     /// \brief Base class for Gazebo GUI plugins.