diff --git a/test/strings/c.strings/cuchar.pass.cpp b/test/strings/c.strings/cuchar.pass.cpp
index d4c15db8..022c656e 100644
--- a/test/strings/c.strings/cuchar.pass.cpp
+++ b/test/strings/c.strings/cuchar.pass.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// XFAIL: apple-darwin
+// XFAIL: *
 
 // <cuchar>
 
diff --git a/test/strings/c.strings/version_cuchar.pass.cpp b/test/strings/c.strings/version_cuchar.pass.cpp
index fa47f0ff..dcfdcc37 100644
--- a/test/strings/c.strings/version_cuchar.pass.cpp
+++ b/test/strings/c.strings/version_cuchar.pass.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// XFAIL: apple-darwin
+// XFAIL: *
 
 // <cuchar>