diff --git a/include/xo/gc/DX1Collector.hpp b/include/xo/gc/DX1Collector.hpp
index 6e7720e..e7a958c 100644
--- a/include/xo/gc/DX1Collector.hpp
+++ b/include/xo/gc/DX1Collector.hpp
@@ -11,7 +11,7 @@
 #include "GCObjectStore.hpp"
 #include "MutationLogState.hpp"
 #include "X1VerifyStats.hpp"
-#include "generation.hpp"
+//#include "generation.hpp"
 #include "object_age.hpp"
 #include "role.hpp"
 #include <xo/alloc2/Allocator.hpp>
diff --git a/include/xo/gc/DX1CollectorIterator.hpp b/include/xo/gc/DX1CollectorIterator.hpp
index d96d9ab..da065c1 100644
--- a/include/xo/gc/DX1CollectorIterator.hpp
+++ b/include/xo/gc/DX1CollectorIterator.hpp
@@ -6,7 +6,7 @@
 #pragma once
 
 #include "AllocInfo.hpp"
-#include "generation.hpp"
+#include "Generation.hpp"
 #include <xo/arena/DArenaIterator.hpp>
 #include <xo/arena/cmpresult.hpp>
 
diff --git a/include/xo/gc/GCObjectStore.hpp b/include/xo/gc/GCObjectStore.hpp
index b1d9679..7c4a6cf 100644
--- a/include/xo/gc/GCObjectStore.hpp
+++ b/include/xo/gc/GCObjectStore.hpp
@@ -7,7 +7,7 @@
 
 #include "GCObjectStoreConfig.hpp"
 #include "ObjectTypeSlot.hpp"
-#include "generation.hpp"
+//#include "Generation.hpp"
 #include "object_age.hpp"
 #include <xo/alloc2/role.hpp>
 #include <array>
diff --git a/include/xo/gc/GCObjectStoreConfig.hpp b/include/xo/gc/GCObjectStoreConfig.hpp
index 08cfd37..9185721 100644
--- a/include/xo/gc/GCObjectStoreConfig.hpp
+++ b/include/xo/gc/GCObjectStoreConfig.hpp
@@ -5,7 +5,7 @@
 
 #pragma once
 
-#include "generation.hpp"
+#include "Generation.hpp"
 #include "object_age.hpp"
 #include <xo/arena/DArena.hpp>
 
diff --git a/include/xo/gc/MutationLogConfig.hpp b/include/xo/gc/MutationLogConfig.hpp
index b499045..e10f228 100644
--- a/include/xo/gc/MutationLogConfig.hpp
+++ b/include/xo/gc/MutationLogConfig.hpp
@@ -6,7 +6,7 @@
 #pragma once
 
 #include "object_age.hpp"
-#include "generation.hpp"
+#include "Generation.hpp"
 #include <cstddef>
 #include <cstdint>
 
diff --git a/include/xo/gc/X1CollectorConfig.hpp b/include/xo/gc/X1CollectorConfig.hpp
index 6ea9562..38f2d5f 100644
--- a/include/xo/gc/X1CollectorConfig.hpp
+++ b/include/xo/gc/X1CollectorConfig.hpp
@@ -8,7 +8,7 @@
 #include "GCObjectStoreConfig.hpp"
 #include "MutationLogConfig.hpp"
 #include "object_age.hpp"
-#include "generation.hpp"
+//#include "Generation.hpp"
 #include <xo/arena/ArenaConfig.hpp>
 #include <array>
 #include <cstdint>
diff --git a/src/gc/DX1Collector.cpp b/src/gc/DX1Collector.cpp
index e09fb10..6c30d75 100644
--- a/src/gc/DX1Collector.cpp
+++ b/src/gc/DX1Collector.cpp
@@ -15,7 +15,6 @@
 #include <xo/alloc2/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include <xo/alloc2/Arena.hpp>
-#include <xo/alloc2/generation.hpp>
 #include "object_age.hpp"
 #include <xo/facet/obj.hpp>
 #include <xo/indentlog/scope.hpp>