diff --git a/include/boost/regex/v4/basic_regex.hpp b/include/boost/regex/v4/basic_regex.hpp
index 71a20f4d..2a8c0c6c 100644
--- a/include/boost/regex/v4/basic_regex.hpp
+++ b/include/boost/regex/v4/basic_regex.hpp
@@ -261,7 +261,7 @@ public:
    {
       return do_assign(p1, p2, f);
    }
-#if !defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(__IBMCPP__)
+#if !defined(BOOST_NO_MEMBER_TEMPLATES)
 
    template <class ST, class SA>
    unsigned int BOOST_REGEX_CALL set_expression(const std::basic_string<charT, ST, SA>& p, flag_type f = regex_constants::normal)
@@ -597,7 +597,7 @@ public:
       return this->assign(that);
    }
 
-#if !defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(__IBMCPP__)
+#if !defined(BOOST_NO_MEMBER_TEMPLATES)
    template <class ST, class SA>
    explicit reg_expression(const std::basic_string<charT, ST, SA>& p, flag_type f = regex_constants::normal)
    : basic_regex<charT, traits>(p, f)