diff --git a/src/boost.cpp b/src/boost.cpp
index f195cdf4e9..044d20a922 100644
--- a/src/boost.cpp
+++ b/src/boost.cpp
@@ -26,7 +26,7 @@ using lyx::lyxerr;
 namespace boost {
 
 #ifndef BOOST_NO_EXCEPTIONS
-void throw_exception(exception const & e)
+void throw_exception(std::exception const & e)
 {
 	lyxerr << "Exception caught:\n" << e.what() << endl;
 	LASSERT(false, /**/);