diff --git a/docs/api.coffee b/docs/api.coffee
index 95c14d670..3154fd01f 100644
--- a/docs/api.coffee
+++ b/docs/api.coffee
@@ -8,7 +8,8 @@
 # View hierarchy
 #
 # App:    has many Windows
-# Window: has many Panes, contains a Document model
+# Window: has many Plugins, contains a Document model
+# Plugin: could have a Pane, or be headless
 # Pane:   has 0 or more Panes
 #
 # Model hieerarcy
@@ -20,14 +21,18 @@ App =
   activeWindow: null
 
 class Window
-  panes: []
+  plugins: []
   document: null
   activePane: null
 
 class Pane
-  subPanes: []
+  panes: []
   window: null
   activeSubPane: null
 
 class Document
   window: null
+
+class Plugin
+  window: null
+