1 files changed, 3 insertions, 2 deletions
diff --git a/src/token.cc b/src/token.cc
index 3df072a7..81c54a82 100644
--- a/src/token.cc
+++ b/src/token.cc
@@ -206,11 +206,12 @@ void expr_t::token_t::next(std::istream& in, const parse_flags_t& pflags)
     length++;
 
     date_interval_t timespan(buf);
-    if (! timespan)
+    optional<date_t> begin = timespan.begin();
+    if (! begin)
       throw_(parse_error,
 	     _("Date specifier does not refer to a starting date"));
     kind  = VALUE;
-    value = *timespan.start;
+    value = *begin;
     break;
   }