diff --git a/test/lib1_throw.hpp b/test/lib1_throw.hpp
index 4f960bf..f3d169b 100644
--- a/test/lib1_throw.hpp
+++ b/test/lib1_throw.hpp
@@ -24,7 +24,7 @@
 namespace lib1
 {
 
-struct exception: public std::exception
+struct BOOST_SYMBOL_VISIBLE exception: public std::exception
 {
 };
 
diff --git a/test/lib2_throw.hpp b/test/lib2_throw.hpp
index 9e85dea..59e8dc2 100644
--- a/test/lib2_throw.hpp
+++ b/test/lib2_throw.hpp
@@ -24,7 +24,7 @@
 namespace lib2
 {
 
-struct exception: public std::exception
+struct BOOST_SYMBOL_VISIBLE exception: public std::exception
 {
 };
 
diff --git a/test/lib3_throw.hpp b/test/lib3_throw.hpp
index 5144b30..da280ab 100644
--- a/test/lib3_throw.hpp
+++ b/test/lib3_throw.hpp
@@ -24,7 +24,7 @@
 namespace lib3
 {
 
-struct exception: public std::exception
+struct BOOST_SYMBOL_VISIBLE exception: public std::exception
 {
 };