diff --git a/test/std/strings/basic.string/string.cons/iter_alloc_deduction.fail.cpp b/test/std/strings/basic.string/string.cons/iter_alloc_deduction.fail.cpp
index a8e440bac..65aba0493 100644
--- a/test/std/strings/basic.string/string.cons/iter_alloc_deduction.fail.cpp
+++ b/test/std/strings/basic.string/string.cons/iter_alloc_deduction.fail.cpp
@@ -10,6 +10,7 @@
 // <string>
 // UNSUPPORTED: c++98, c++03, c++11, c++14
 // UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8, clang-3.9, clang-4.0
+// UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8.0
 
 // template<class InputIterator,
 //      class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
diff --git a/test/std/strings/basic.string/string.cons/iter_alloc_deduction.pass.cpp b/test/std/strings/basic.string/string.cons/iter_alloc_deduction.pass.cpp
index 3200a02bd..a6c458c0e 100644
--- a/test/std/strings/basic.string/string.cons/iter_alloc_deduction.pass.cpp
+++ b/test/std/strings/basic.string/string.cons/iter_alloc_deduction.pass.cpp
@@ -10,6 +10,7 @@
 // <string>
 // UNSUPPORTED: c++98, c++03, c++11, c++14
 // UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8, clang-3.9, clang-4.0
+// UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8.0
 
 // template<class InputIterator>
 //   basic_string(InputIterator begin, InputIterator end,