diff --git a/type_traits_test.cpp b/type_traits_test.cpp
index bcd1946..c96376c 100644
--- a/type_traits_test.cpp
+++ b/type_traits_test.cpp
@@ -7,6 +7,9 @@
 // standalone test program for <boost/type_traits.hpp>
 
 /* Release notes:
+   31 Jan 2001:
+      Added test case for is_convertible with UDT that brings out the
+      warning message bug with g++. (Jeremy Siek)
    20 Jan 2001:
       Suppress an expected warning for MSVC
       Added a test to prove that we can use void with is_same<>
@@ -146,7 +149,7 @@ template <> struct is_POD<empty_POD_union_UDT>
 
 class Base { };
 
-class Deriverd : public Base { };
+class Derived : public Base { };
 
 class NonDerived { };
 
@@ -599,11 +602,12 @@ int main()
    value_test(false, is_POD<empty_UDT>::value)
    value_test(true, is_POD<enum_UDT>::value)
 
-   value_test(true, (boost::is_convertible<Deriverd,Base>::value));
-   value_test(true, (boost::is_convertible<Deriverd,Deriverd>::value));
+   value_test(true, (boost::is_convertible<Derived,Base>::value));
+   value_test(true, (boost::is_convertible<Derived,Derived>::value));
    value_test(true, (boost::is_convertible<Base,Base>::value));
-   value_test(false, (boost::is_convertible<Base,Deriverd>::value));
-   value_test(true, (boost::is_convertible<Deriverd,Deriverd>::value));
+   value_test(false, (boost::is_convertible<UDT,int>::value));
+   value_test(false, (boost::is_convertible<Base,Derived>::value));
+   value_test(true, (boost::is_convertible<Derived,Derived>::value));
    value_test(false, (boost::is_convertible<NonDerived,Base>::value));
    value_test(false, (boost::is_convertible<boost::noncopyable, int>::value));
    value_test(true, (boost::is_convertible<float,int>::value));
@@ -613,14 +617,14 @@ int main()
    value_test(true, (boost::is_convertible<void,void>::value));
 #endif
    value_test(true, (boost::is_convertible<enum1, int>::value));
-   value_test(true, (boost::is_convertible<Deriverd*, Base*>::value));
-   value_test(false, (boost::is_convertible<Base*, Deriverd*>::value));
-   value_test(true, (boost::is_convertible<Deriverd&, Base&>::value));
-   value_test(false, (boost::is_convertible<Base&, Deriverd&>::value));
-   value_test(true, (boost::is_convertible<const Deriverd*, const Base*>::value));
-   value_test(false, (boost::is_convertible<const Base*, const Deriverd*>::value));
-   value_test(true, (boost::is_convertible<const Deriverd&, const Base&>::value));
-   value_test(false, (boost::is_convertible<const Base&, const Deriverd&>::value));
+   value_test(true, (boost::is_convertible<Derived*, Base*>::value));
+   value_test(false, (boost::is_convertible<Base*, Derived*>::value));
+   value_test(true, (boost::is_convertible<Derived&, Base&>::value));
+   value_test(false, (boost::is_convertible<Base&, Derived&>::value));
+   value_test(true, (boost::is_convertible<const Derived*, const Base*>::value));
+   value_test(false, (boost::is_convertible<const Base*, const Derived*>::value));
+   value_test(true, (boost::is_convertible<const Derived&, const Base&>::value));
+   value_test(false, (boost::is_convertible<const Base&, const Derived&>::value));
 
    value_test(false, (boost::is_convertible<const int *, int*>::value));
    value_test(false, (boost::is_convertible<const int&, int&>::value));