diff --git a/test/libcxx/test/target_info.py b/test/libcxx/test/target_info.py
index 667644d2f..df216fcb2 100644
--- a/test/libcxx/test/target_info.py
+++ b/test/libcxx/test/target_info.py
@@ -62,7 +62,7 @@ class DarwinLocalTI(DefaultTargetInfo):
         super(DarwinLocalTI, self).__init__(full_config)
 
     def add_locale_features(self, features):
-        add_common_locales(feature, self.full_config.lit_config)
+        add_common_locales(features, self.full_config.lit_config)
 
     def add_cxx_compile_flags(self, flags):
         try: