diff --git a/include/boost/iterator/detail/config_def.hpp b/include/boost/iterator/detail/config_def.hpp
index 1a3ecc5..1f4e89a 100644
--- a/include/boost/iterator/detail/config_def.hpp
+++ b/include/boost/iterator/detail/config_def.hpp
@@ -83,10 +83,13 @@
 #  define BOOST_NO_IS_CONVERTIBLE // "is_convertible doesn't work for simple types"
 #endif
 
-#if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(3)) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+#if BOOST_WORKAROUND(__GNUC__, == 2)                                                \
+    || BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4)    \
+    || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
 #  define BOOST_NO_IS_CONVERTIBLE_TEMPLATE // The following program fails to compile:
 
 #  if 0 // test code
+    #include <boost/type_traits/is_convertible.hpp>
     template <class T>
     struct foo
     {