1 files changed, 5 insertions, 2 deletions
diff --git a/valexpr.cc b/valexpr.cc
index 16f43a15..509c6fa1 100644
--- a/valexpr.cc
+++ b/valexpr.cc
@@ -56,8 +56,11 @@ bool compute_amount(ptr_op_t expr, amount_t& amt,
   value_t result;
   try {
     expr->compute(result, xact ? details_t(*xact) : details_t(), context);
-    result.cast(value_t::AMOUNT);
-    amt = result.as_amount_lval();
+
+    // Most of the time when computing the amount of a transaction this cast
+    // will do nothing at all.
+    result.in_place_cast(value_t::AMOUNT);
+    amt = result.as_amount();
   }
   catch (error * err) {
     if (err->context.empty() ||