diff --git a/include/new b/include/new
index 94a28495..b0c47923 100644
--- a/include/new
+++ b/include/new
@@ -27,6 +27,18 @@ public:
     virtual const char* what() const noexcept;
 };
 
+class bad_array_length : public bad_alloc // C++14
+{
+public:
+    bad_array_length() noexcept;
+};
+
+class bad_array_new_length : public bad_alloc
+{
+public:
+    bad_array_new_length() noexcept;
+};
+
 struct nothrow_t {};
 extern const nothrow_t nothrow;
 typedef void (*new_handler)();
@@ -81,6 +93,17 @@ public:
     virtual const char* what() const _NOEXCEPT;
 };
 
+#if defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11)
+class _LIBCPP_EXCEPTION_ABI bad_array_length
+    : public bad_alloc
+{
+public:
+    bad_array_length() _NOEXCEPT;
+    virtual ~bad_array_length() _NOEXCEPT;
+    virtual const char* what() const _NOEXCEPT;
+};
+#endif
+
 _LIBCPP_FUNC_VIS void __throw_bad_alloc();  // not in C++ spec
 
 struct _LIBCPP_TYPE_VIS nothrow_t {};
diff --git a/src/new.cpp b/src/new.cpp
index b23a516f..4a2af8bc 100644
--- a/src/new.cpp
+++ b/src/new.cpp
@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+#define _LIBCPP_BUILDING_NEW
+
 #include <stdlib.h>
 
 #include "new"
@@ -186,13 +188,27 @@ bad_array_new_length::~bad_array_new_length() _NOEXCEPT
 {
 }
 
+const char*
+bad_array_length::what() const _NOEXCEPT
+{
+    return "bad_array_length";
+}
+
+bad_array_length::bad_array_length() _NOEXCEPT
+{
+}
+
+bad_array_length::~bad_array_length() _NOEXCEPT
+{
+}
+
 const char*
 bad_array_new_length::what() const _NOEXCEPT
 {
     return "bad_array_new_length";
 }
 
-#endif
+#endif // _LIBCPPABI_VERSION
 
 void
 __throw_bad_alloc()