diff --git a/src/gc/GCObjectStore.cpp b/src/gc/GCObjectStore.cpp
index 621a154..4076fd9 100644
--- a/src/gc/GCObjectStore.cpp
+++ b/src/gc/GCObjectStore.cpp
@@ -870,7 +870,7 @@ namespace xo {
 
             //obj<AAllocator, DX1Collector> gc_gco(gc);
 
-            void * to_dest = iface->shallow_move(from_src, gc->ref<AAllocator>());
+            void * to_dest = iface->shallow_move(from_src, gc->ref<ACollector>());
 
             log && log(xtag("from_src", from_src), xtag("to_dest", to_dest));
             log && log(xtag("tseq", info.tseq()),