diff --git a/lib/ast.js b/lib/ast.js
index a4a87a2a..bfafac6c 100644
--- a/lib/ast.js
+++ b/lib/ast.js
@@ -150,6 +150,7 @@ var AST_EmptyStatement = DEFNODE("EmptyStatement", null, {
 }, AST_Statement);
 
 var AST_StatementWithBody = DEFNODE("StatementWithBody", null, {
+    $documentation: "Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`."
 }, AST_Statement);
 
 var AST_DWLoop = DEFNODE("DWLoop", "condition", {