diff --git a/src/hb-meta.hh b/src/hb-meta.hh
index e0b7ef0cc..90757d38a 100644
--- a/src/hb-meta.hh
+++ b/src/hb-meta.hh
@@ -192,14 +192,12 @@ template <> struct hb_int_max<unsigned long long>	: hb_integral_constant<unsigne
 #define hb_is_trivially_copyable(T) __has_trivial_copy(T)
 #define hb_is_trivially_copy_assignable(T) __has_trivial_assign(T)
 #define hb_is_trivially_constructible(T) __has_trivial_constructor(T)
-#define hb_is_copy_constructible(T) __has_copy_constructor(T)
 #define hb_is_trivially_copy_constructible(T) __has_trivial_copy_constructor(T)
 #define hb_is_trivially_destructible(T) __has_trivial_destructor(T)
 #else
 #define hb_is_trivially_copyable(T) std::is_trivially_copyable<T>::value
 #define hb_is_trivially_copy_assignable(T) std::is_trivially_copy_assignable<T>::value
 #define hb_is_trivially_constructible(T) std::is_trivially_constructible<T>::value
-#define hb_is_copy_constructible(T) std::is_copy_constructible<T>::value
 #define hb_is_trivially_copy_constructible(T) std::is_trivially_copy_constructible<T>::value
 #define hb_is_trivially_destructible(T) std::is_trivially_destructible<T>::value
 #endif
diff --git a/src/hb-vector.hh b/src/hb-vector.hh
index a5447a64d..4035bb458 100644
--- a/src/hb-vector.hh
+++ b/src/hb-vector.hh
@@ -264,7 +264,7 @@ struct hb_vector_t : std::conditional<sorted, hb_vector_t<Type, false>, hb_empty
   }
   template <typename T = Type,
 	    hb_enable_if (!hb_is_trivially_copyable (T) &&
-			   hb_is_copy_constructible (T))>
+			   std::is_copy_constructible<T>::value)>
   void
   copy_vector (const hb_vector_t &other)
   {