diff --git a/Include/unicodeobject.h b/Include/unicodeobject.h
index 0531aed..8c39cfe 100644
--- a/Include/unicodeobject.h
+++ b/Include/unicodeobject.h
@@ -357,15 +357,8 @@
         Py_UNICODE_ISDIGIT(ch) || \
         Py_UNICODE_ISNUMERIC(ch))
 
-/* memcpy has a considerable setup overhead on many platforms; use a
-   loop for short strings (the "16" below is pretty arbitary) */
-#define Py_UNICODE_COPY(target, source, length) do\
-    {Py_ssize_t i_; Py_UNICODE *t_ = (target); const Py_UNICODE *s_ = (source);\
-      if (length > 16)\
-        memcpy(t_, s_, (length)*sizeof(Py_UNICODE));\
-      else\
-        for (i_ = 0; i_ < (length); i_++) t_[i_] = s_[i_];\
-    } while (0)
+#define Py_UNICODE_COPY(target, source, length)				\
+	Py_MEMCPY((target), (source), (length)*sizeof(Py_UNICODE))
 
 #define Py_UNICODE_FILL(target, value, length) do\
     {Py_ssize_t i_; Py_UNICODE *t_ = (target); Py_UNICODE v_ = (value);\