diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index 0f6e40ad28c1..ae3152a5b06c 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -556,9 +556,6 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
   if (!TargetInfo::isTypeSigned(TI.getWIntType()))
     Builder.defineMacro("__WINT_UNSIGNED__");
 
-  if (!TargetInfo::isTypeSigned(TI.getWCharType()))
-    Builder.defineMacro("__WCHAR_UNSIGNED__");
-
   // Define exact-width integer types for stdint.h
   Builder.defineMacro("__INT" + Twine(TI.getCharWidth()) + "_TYPE__",
                       "char");
diff --git a/clang/test/Headers/wchar_limits.cpp b/clang/test/Headers/wchar_limits.cpp
index 5245f31d4c38..93a99ad78f2b 100644
--- a/clang/test/Headers/wchar_limits.cpp
+++ b/clang/test/Headers/wchar_limits.cpp
@@ -5,11 +5,5 @@
 
 const bool swchar = (wchar_t)-1 > (wchar_t)0;
 
-#ifdef __WCHAR_UNSIGNED__
-int signed_test[!swchar];
-#else
-int signed_test[swchar];
-#endif
-
 int max_test[WCHAR_MAX == (swchar ? -(WCHAR_MIN+1) : (wchar_t)-1)];
 int min_test[WCHAR_MIN == (swchar ? 0 : -WCHAR_MAX-1)];