diff --git a/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/grouping.pass.cpp b/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/grouping.pass.cpp
--- a/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/grouping.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.monetary/locale.moneypunct.byname/grouping.pass.cpp
@@ -10,7 +10,6 @@
 //
 // NetBSD does not support LC_MONETARY at the moment
 // XFAIL: netbsd
-// XFAIL: LIBCXX-AIX-FIXME
 
 // REQUIRES: locale.en_US.UTF-8
 // REQUIRES: locale.fr_FR.UTF-8
@@ -88,7 +87,7 @@
     }
 #endif
 
-#ifdef _WIN32
+#if defined( _WIN32) || defined(_AIX)
     std::string us_grouping = "\3";
 #else
     std::string us_grouping = "\3\3";
@@ -131,7 +130,7 @@
     }
 #endif
 
-#ifdef _WIN32
+#if defined( _WIN32) || defined(_AIX)
     std::string ru_grouping = "\3";
 #else
     std::string ru_grouping = "\3\3";