diff --git a/src/filters.cc b/src/filters.cc
index 14b18db1..bb2681c6 100644
--- a/src/filters.cc
+++ b/src/filters.cc
@@ -753,7 +753,7 @@ void budget_posts::report_budget_items(const date_t& date)
       optional<date_t> begin = pair.first.start;
       if (! begin) {
 	if (! pair.first.find_period(date))
-	  throw_(std::runtime_error, _()"Something odd has happened");
+	  throw_(std::runtime_error, _("Something odd has happened"));
 	begin = pair.first.start;
       }
       assert(begin);