diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
index 500c77363..dd3923ecc 100644
--- a/build/Jamfile.v2
+++ b/build/Jamfile.v2
@@ -21,7 +21,7 @@ project
       #<toolset>sun:<cxxflags>-xldscope=hidden
       [ check-target-builds ../config//has_gcc_visibility "gcc visibility" : <toolset>gcc:<cxxflags>-fvisibility=hidden : ]
       [ requires cxx11_noexcept cxx11_rvalue_references sfinae_expr cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_hdr_tuple cxx11_hdr_initializer_list cxx11_hdr_chrono cxx11_thread_local cxx11_constexpr cxx11_nullptr cxx11_numeric_limits cxx11_decltype cxx11_hdr_array cxx11_hdr_atomic cxx11_hdr_type_traits cxx11_allocator cxx11_explicit_conversion_operators ]
-      [ requires cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction cxx14_variable_templates cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction ]
+      [ requires cxx14_constexpr cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction cxx14_variable_templates ]
     : usage-requirements
         <define>BOOST_MATH_TR1_NO_LIB=1
     ;
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 2d3621c31..921e08fcb 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -75,7 +75,7 @@ project
       <search>$(mpfr_path)
       <search>$(mpfr_path)/build.vc10/lib/Win32/Debug
       [ requires cxx11_noexcept cxx11_rvalue_references sfinae_expr cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_hdr_tuple cxx11_hdr_initializer_list cxx11_hdr_chrono cxx11_thread_local cxx11_constexpr cxx11_nullptr cxx11_numeric_limits cxx11_decltype cxx11_hdr_array cxx11_hdr_atomic cxx11_hdr_type_traits cxx11_allocator cxx11_explicit_conversion_operators ]
-      [ requires cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction cxx14_variable_templates cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction ]
+      [ requires cxx14_constexpr cxx14_decltype_auto cxx14_generic_lambdas cxx14_return_type_deduction cxx14_variable_templates ]
     ;
 
 if $(ntl-path)