diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 30db418..c3e1f29 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -12846,7 +12846,7 @@
     _PyUnicode_STATE(self).interned = 0;
     _PyUnicode_STATE(self).kind = kind;
     _PyUnicode_STATE(self).compact = 0;
-    _PyUnicode_STATE(self).ascii = 0;
+    _PyUnicode_STATE(self).ascii = _PyUnicode_STATE(unicode).ascii;
     _PyUnicode_STATE(self).ready = 1;
     _PyUnicode_WSTR(self) = NULL;
     _PyUnicode_UTF8_LENGTH(self) = 0;