1 files changed, 1 insertions, 1 deletions

diff --git a/src/expr.h b/src/expr.h
index 97e8c948..638855b1 100644
--- a/src/expr.h
+++ b/src/expr.h
@@ -87,7 +87,7 @@ public:
     parse(in, flags);
   }
 
-  ~expr_t() throw() {
+  virtual ~expr_t() {
     TRACE_DTOR(expr_t);
   }