diff --git a/xo-gc/include/xo/gc/X1Collector.hpp b/xo-gc/include/xo/gc/X1Collector.hpp
new file mode 100644
index 00000000..c9d00da3
--- /dev/null
+++ b/xo-gc/include/xo/gc/X1Collector.hpp
@@ -0,0 +1,11 @@
+/** @file X1Collector.hpp
+ *
+ *  @author Roland Conybeare, Feb 2026
+ **/
+
+#pragma once
+
+#include "DX1Collector.hpp"
+#include "detail/ICollector_DX1Collector.hpp"
+
+/* end X1Collector.hpp */