diff --git a/journal.h b/journal.h
index 54486c9d..b5fa9553 100644
--- a/journal.h
+++ b/journal.h
@@ -150,6 +150,8 @@ class entry_base_t
   virtual bool valid() const = 0;
 };
 
+extern value_t entry_balance;
+
 class entry_t : public entry_base_t
 {
  public: