diff --git a/walk.cc b/walk.cc
index ddfbcfb9..0c8f7add 100644
--- a/walk.cc
+++ b/walk.cc
@@ -117,7 +117,7 @@ void set_account_value::operator()(transaction_t& xact)
   item_handler<transaction_t>::operator()(xact);
 }
 
-void sort_transactions::flush()
+void sort_transactions::post_accumulated_xacts()
 {
   std::stable_sort(transactions.begin(), transactions.end(),
 		   compare_items<transaction_t>(sort_order));
@@ -129,8 +129,6 @@ void sort_transactions::flush()
     item_handler<transaction_t>::operator()(**i);
   }
 
-  item_handler<transaction_t>::flush();
-
   transactions.clear();
 }
 
@@ -402,7 +400,7 @@ void interval_transactions::report_subtotal(const std::time_t moment)
   subtotal_transactions::report_subtotal();
 
   if (sorter)
-    subtotal_transactions::flush();
+    sorter->post_accumulated_xacts();
 
   last_xact = NULL;
 }
diff --git a/walk.h b/walk.h
index 335ce028..f04eb41b 100644
--- a/walk.h
+++ b/walk.h
@@ -220,7 +220,13 @@ class sort_transactions : public item_handler<transaction_t>
       delete sort_order;
   }
 
-  virtual void flush();
+  virtual void post_accumulated_xacts();
+
+  virtual void flush() {
+    post_accumulated_xacts();
+    item_handler<transaction_t>::flush();
+  }
+
   virtual void operator()(transaction_t& xact) {
     transactions.push_back(&xact);
   }
@@ -402,7 +408,7 @@ class interval_transactions : public subtotal_transactions
   transaction_t * last_xact;
   bool            started;
 
-  item_handler<transaction_t> * sorter;
+  sort_transactions * sorter;
 
  public:
   interval_transactions(item_handler<transaction_t> * _handler,