diff --git a/test/boost_no_ptr_mem_const.ipp b/test/boost_no_ptr_mem_const.ipp
index a95dced7..da5eefb3 100644
--- a/test/boost_no_ptr_mem_const.ipp
+++ b/test/boost_no_ptr_mem_const.ipp
@@ -80,8 +80,8 @@ public:
 
 int test()
 {
-   mem_fun(&tester::foo1);
-   mem_fun(&tester::foo2);
+   boost_no_pointer_to_member_const::mem_fun(&tester::foo1);
+   boost_no_pointer_to_member_const::mem_fun(&tester::foo2);
    return 0;
 }