diff --git a/libcxx/test/libcxx/selftest/newformat/pass.cpp/werror.pass.cpp b/libcxx/test/libcxx/selftest/newformat/pass.cpp/werror.pass.cpp
index 31b7453164ea9..ee82c613153a2 100644
--- a/libcxx/test/libcxx/selftest/newformat/pass.cpp/werror.pass.cpp
+++ b/libcxx/test/libcxx/selftest/newformat/pass.cpp/werror.pass.cpp
@@ -17,6 +17,9 @@
 // TODO: We don't enable -Werror on GCC right now, because too many tests fail.
 // UNSUPPORTED: gcc
 
+// TODO(ldionne): We don't enable -Werror in C++03 right now
+// UNSUPPORTED: c++98, c++03
+
 int main() {
     int foo;
 }
diff --git a/libcxx/test/libcxx/selftest/newformat/sh.cpp/werror.sh.cpp b/libcxx/test/libcxx/selftest/newformat/sh.cpp/werror.sh.cpp
index 5b84275bf6871..eb115ed2fb221 100644
--- a/libcxx/test/libcxx/selftest/newformat/sh.cpp/werror.sh.cpp
+++ b/libcxx/test/libcxx/selftest/newformat/sh.cpp/werror.sh.cpp
@@ -14,6 +14,9 @@
 // TODO: We don't enable -Werror on GCC right now, because too many tests fail.
 // UNSUPPORTED: gcc
 
+// TODO(ldionne): We don't enable -Werror in C++03 right now
+// UNSUPPORTED: c++98, c++03
+
 // FILE_DEPENDENCIES: %t.exe
 // RUN: %{build} -Wunused-variable
 // RUN: %{run}