diff --git a/test/test_expint.cpp b/test/test_expint.cpp
index 0ee1d3a11..7cefb7925 100644
--- a/test/test_expint.cpp
+++ b/test/test_expint.cpp
@@ -131,7 +131,11 @@ void do_test_expint(const T& data, const char* type_name, const char* test_name)
    std::cout << test_name << " with type " << type_name << std::endl;
 
    typedef value_type (*pg)(value_type, value_type);
+#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
+   pg funcp = expint_wrapper<value_type>;
+#else
    pg funcp = expint_wrapper;
+#endif
 
    boost::math::tools::test_result<value_type> result;
    //
@@ -172,7 +176,11 @@ void do_test_expint_Ei(const T& data, const char* type_name, const char* test_na
    std::cout << test_name << " with type " << type_name << std::endl;
 
    typedef value_type (*pg)(value_type);
+#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
+   pg funcp = boost::math::expint<value_type>;
+#else
    pg funcp = boost::math::expint;
+#endif
 
    boost::math::tools::test_result<value_type> result;
    //
diff --git a/test/test_zeta.cpp b/test/test_zeta.cpp
index 196c52232..7a077bfed 100644
--- a/test/test_zeta.cpp
+++ b/test/test_zeta.cpp
@@ -105,7 +105,11 @@ void do_test_zeta(const T& data, const char* type_name, const char* test_name)
    std::cout << test_name << " with type " << type_name << std::endl;
 
    typedef value_type (*pg)(value_type);
+#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
+   pg funcp = boost::math::zeta<value_type>;
+#else
    pg funcp = boost::math::zeta;
+#endif
 
    boost::math::tools::test_result<value_type> result;
    //