diff --git a/test/std/language.support/support.dynamic/new.delete/new.delete.array/sized_delete_array14.pass.cpp b/test/std/language.support/support.dynamic/new.delete/new.delete.array/sized_delete_array14.pass.cpp
index 6447e297..da253274 100644
--- a/test/std/language.support/support.dynamic/new.delete/new.delete.array/sized_delete_array14.pass.cpp
+++ b/test/std/language.support/support.dynamic/new.delete/new.delete.array/sized_delete_array14.pass.cpp
@@ -11,10 +11,10 @@
 
 // UNSUPPORTED: sanitizer-new-delete, c++98, c++03, c++11
 
-// TODO: Clang does not enable sized-deallocation in c++14 and behond by
+// TODO: Clang does not enable sized-deallocation in c++14 and beyond by
 // default. It is only enabled when -fsized-deallocation is given.
 // (except clang-3.6 which temporarly enabled sized-deallocation)
-// XFAIL: clang-3.4, clang-3.5, clang-3.7
+// XFAIL: clang-3.4, clang-3.5, clang-3.7, clang-3.8
 // XFAIL: apple-clang
 
 // NOTE: GCC 4.9.1 does not support sized-deallocation in c++14. However
diff --git a/test/std/language.support/support.dynamic/new.delete/new.delete.single/sized_delete14.pass.cpp b/test/std/language.support/support.dynamic/new.delete/new.delete.single/sized_delete14.pass.cpp
index 3c7f54fe..f76ad36f 100644
--- a/test/std/language.support/support.dynamic/new.delete/new.delete.single/sized_delete14.pass.cpp
+++ b/test/std/language.support/support.dynamic/new.delete/new.delete.single/sized_delete14.pass.cpp
@@ -11,10 +11,10 @@
 
 // UNSUPPORTED: sanitizer-new-delete, c++98, c++03, c++11
 
-// TODO: Clang does not enable sized-deallocation in c++14 and behond by
+// TODO: Clang does not enable sized-deallocation in c++14 and beyond by
 // default. It is only enabled when -fsized-deallocation is given.
 // (except clang-3.6 which temporarly enabled sized-deallocation)
-// XFAIL: clang-3.4, clang-3.5, clang-3.7
+// XFAIL: clang-3.4, clang-3.5, clang-3.7, clang-3.8
 // XFAIL: apple-clang
 
 // NOTE: GCC 4.9.1 does not support sized-deallocation in c++14. However