diff --git a/Tests/CompileFeatures/cxx_generalized_initializers.cpp b/Tests/CompileFeatures/cxx_generalized_initializers.cpp
index 8013ef5c2..7bf356b63 100644
--- a/Tests/CompileFeatures/cxx_generalized_initializers.cpp
+++ b/Tests/CompileFeatures/cxx_generalized_initializers.cpp
@@ -8,6 +8,7 @@ namespace std {
     const _E* __begin_;
     size_t    __size_;
 
+    initializer_list(const int*, long unsigned int) {}
   };
 }