diff --git a/test/utilities/meta/meta.trans/meta.trans.sign/make_signed.pass.cpp b/test/utilities/meta/meta.trans/meta.trans.sign/make_signed.pass.cpp
index 8acc01a1..6e265a05 100644
--- a/test/utilities/meta/meta.trans/meta.trans.sign/make_signed.pass.cpp
+++ b/test/utilities/meta/meta.trans/meta.trans.sign/make_signed.pass.cpp
@@ -43,8 +43,8 @@ int main()
     test_make_signed< unsigned long, long >();
     test_make_signed< long long, signed long long >();
     test_make_signed< unsigned long long, signed long long >();
-    test_make_signed< wchar_t, int >();
-    test_make_signed< const wchar_t, const int >();
+    test_make_signed< wchar_t, std::conditional<sizeof(wchar_t) == 4, int, short>::type >();
+    test_make_signed< const wchar_t, std::conditional<sizeof(wchar_t) == 4, const int, const short>::type >();
     test_make_signed< const Enum, const int >();
     test_make_signed< BigEnum, std::conditional<sizeof(long) == 4, long long, long>::type >();
 }
diff --git a/test/utilities/meta/meta.trans/meta.trans.sign/make_unsigned.pass.cpp b/test/utilities/meta/meta.trans/meta.trans.sign/make_unsigned.pass.cpp
index 492e01fb..5e432b52 100644
--- a/test/utilities/meta/meta.trans/meta.trans.sign/make_unsigned.pass.cpp
+++ b/test/utilities/meta/meta.trans/meta.trans.sign/make_unsigned.pass.cpp
@@ -43,8 +43,8 @@ int main()
     test_make_unsigned<unsigned long, unsigned long> ();
     test_make_unsigned<long long, unsigned long long> ();
     test_make_unsigned<unsigned long long, unsigned long long> ();
-    test_make_unsigned<wchar_t, unsigned int> ();
-    test_make_unsigned<const wchar_t, const unsigned int> ();
+    test_make_unsigned<wchar_t, std::conditional<sizeof(wchar_t) == 4, unsigned int, unsigned short>::type> ();
+    test_make_unsigned<const wchar_t, std::conditional<sizeof(wchar_t) == 4, const unsigned int, const unsigned short>::type> ();
     test_make_unsigned<const Enum, const unsigned int> ();
     test_make_unsigned<BigEnum,
                    std::conditional<sizeof(long) == 4, unsigned long long, unsigned long>::type> ();