Fix name mangling of PyUnicode_ClearFreeList.
diff --git a/Include/unicodeobject.h b/Include/unicodeobject.h
index ee9fec1..d5964f1 100644
--- a/Include/unicodeobject.h
+++ b/Include/unicodeobject.h
@@ -296,7 +296,7 @@
 # define _PyUnicode_AsDefaultEncodedString _PyUnicodeUCS4_AsDefaultEncodedString
 # define _PyUnicode_Fini _PyUnicodeUCS4_Fini
 # define _PyUnicode_Init _PyUnicodeUCS4_Init
-# define PyUnicode_ClearFreeList PyUnicodeUCS2_ClearFreelist
+# define PyUnicode_ClearFreeList PyUnicodeUCS4_ClearFreelist
 # define _PyUnicode_IsAlpha _PyUnicodeUCS4_IsAlpha
 # define _PyUnicode_IsDecimalDigit _PyUnicodeUCS4_IsDecimalDigit
 # define _PyUnicode_IsDigit _PyUnicodeUCS4_IsDigit