diff --git a/base/exception.hpp b/base/exception.hpp
index 43a4669138..ff6bb102c4 100644
--- a/base/exception.hpp
+++ b/base/exception.hpp
@@ -33,7 +33,7 @@ public:
     return msg.c_str();
   }
 
-  string const & Msg() const
+  string const & Msg() const throw()
   {
     return m_Msg;
   }