diff --git a/src/mzscheme/gc2/mem_account.c b/src/mzscheme/gc2/mem_account.c
index 74bc79e794..67eb15fe33 100644
--- a/src/mzscheme/gc2/mem_account.c
+++ b/src/mzscheme/gc2/mem_account.c
@@ -466,6 +466,7 @@ static void BTC_do_accounting(NewGC *gc)
       if (parent) {
         int powner = custodian_to_owner_set(gc, parent);
 
+        owner_table = gc->owner_table;
         owner_table[powner]->memory_use += owner_table[owner]->memory_use;
       }