diff --git a/idl/IGCObject_DPrimitive_gco_0.json5 b/idl/IGCObject_DPrimitive_gco_0.json5
index 27557c2..89c7de3 100644
--- a/idl/IGCObject_DPrimitive_gco_0.json5
+++ b/idl/IGCObject_DPrimitive_gco_0.json5
@@ -5,7 +5,7 @@
     output_impl_subdir: "detail",
     includes: [
         //<xo/procedure2/GCObjectConversion_DPrimitive_gco_0.hpp>
-        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/GCObject.hpp>",
         "<xo/alloc2/Allocator.hpp>",
     ],
     local_types: [ ],
diff --git a/idl/IGCObject_DPrimitive_gco_1_gco.json5 b/idl/IGCObject_DPrimitive_gco_1_gco.json5
index 3b85d4a..60785f6 100644
--- a/idl/IGCObject_DPrimitive_gco_1_gco.json5
+++ b/idl/IGCObject_DPrimitive_gco_1_gco.json5
@@ -5,7 +5,7 @@
     output_impl_subdir: "detail",
     includes: [
         //<xo/procedure2/GCObjectConversion_DPrimitive_gco_1_gco.hpp>
-        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/GCObject.hpp>",
         "<xo/alloc2/Allocator.hpp>",
     ],
     local_types: [ ],
diff --git a/idl/IGCObject_DPrimitive_gco_2_gco_gco.json5 b/idl/IGCObject_DPrimitive_gco_2_gco_gco.json5
index cd17ae4..e0ffb9f 100644
--- a/idl/IGCObject_DPrimitive_gco_2_gco_gco.json5
+++ b/idl/IGCObject_DPrimitive_gco_2_gco_gco.json5
@@ -5,7 +5,7 @@
     output_impl_subdir: "detail",
     includes: [
         //<xo/procedure2/GCObjectConversion_DPrimitive_gco_2_gco_gco.hpp>
-        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/GCObject.hpp>",
         "<xo/alloc2/Allocator.hpp>",
     ],
     local_types: [ ],
diff --git a/idl/IGCObject_DPrimitive_gco_3_dict_string_gco.json5 b/idl/IGCObject_DPrimitive_gco_3_dict_string_gco.json5
index 342b9bf..ad44b58 100644
--- a/idl/IGCObject_DPrimitive_gco_3_dict_string_gco.json5
+++ b/idl/IGCObject_DPrimitive_gco_3_dict_string_gco.json5
@@ -5,7 +5,7 @@
     output_impl_subdir: "detail",
     includes: [
         //<xo/procedure2/GCObjectConversion_DPrimitive_gco_3_dict_string_gco.hpp>
-        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/GCObject.hpp>",
         "<xo/alloc2/Allocator.hpp>",
     ],
     local_types: [ ],
diff --git a/idl/Procedure.json5 b/idl/Procedure.json5
index b45227d..a4597dd 100644
--- a/idl/Procedure.json5
+++ b/idl/Procedure.json5
@@ -10,7 +10,7 @@
     // includes in ASyntaxStateMachine.hpp
     includes: [
         "\"RuntimeContext.hpp\"",
-        "<xo/gc/GCObject.hpp>",
+        "<xo/alloc2/GCObject.hpp>",
     ],
     // extra includes in Procedure.hpp, if any
     user_hpp_includes: [
diff --git a/include/xo/procedure2/detail/AProcedure.hpp b/include/xo/procedure2/detail/AProcedure.hpp
index eb119fb..a5c41b4 100644
--- a/include/xo/procedure2/detail/AProcedure.hpp
+++ b/include/xo/procedure2/detail/AProcedure.hpp
@@ -15,7 +15,7 @@
 
 // includes (via {facet_includes})
 #include "RuntimeContext.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 #include <xo/facet/obj.hpp>
 #include <xo/facet/facet_implementation.hpp>
 #include <xo/facet/typeseq.hpp>
diff --git a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
index 91ff183..c886527 100644
--- a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
+++ b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_0.hpp"
 
diff --git a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
index 190a92c..ac5a443 100644
--- a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
+++ b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_1_gco.hpp"
 
diff --git a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
index f6bfe6e..fee6d62 100644
--- a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
+++ b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_2_gco_gco.hpp"
 
diff --git a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
index abb30bc..951bda1 100644
--- a/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
+++ b/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_3_dict_string_gco.hpp"
 
diff --git a/include/xo/procedure2/detail/IProcedure_Xfer.hpp b/include/xo/procedure2/detail/IProcedure_Xfer.hpp
index 0be093f..59742f3 100644
--- a/include/xo/procedure2/detail/IProcedure_Xfer.hpp
+++ b/include/xo/procedure2/detail/IProcedure_Xfer.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "RuntimeContext.hpp"
-#include <xo/gc/GCObject.hpp>
+#include <xo/alloc2/GCObject.hpp>
 
 namespace xo {
 namespace scm {