diff --git a/include/xo/expression2/ApplyExpr.hpp b/include/xo/expression2/ApplyExpr.hpp
new file mode 100644
index 00000000..fd9c0764
--- /dev/null
+++ b/include/xo/expression2/ApplyExpr.hpp
@@ -0,0 +1,13 @@
+/** @file ApplyExpr.hpp
+ *
+ *  @author Roland Conybeare, Feb 2026
+ **/
+
+#pragma once
+
+#include "DApplyExpr.hpp"
+#include "detail/IExpression_DApplyExpr.hpp"
+//#include "detail/IGCObject_DApplyExpr.hpp"
+#include "detail/IPrintable_DApplyExpr.hpp"
+
+/* end ApplyExpr.hpp */