diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 7b4a4a3..ee7ae54 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1712,9 +1712,9 @@
 [clinic start generated code]*/
 
 static PyObject *
-array_array_fromunicode_impl(arrayobject *self, Py_UNICODE *ustr,
+array_array_fromunicode_impl(arrayobject *self, const Py_UNICODE *ustr,
                              Py_ssize_clean_t ustr_length)
-/*[clinic end generated code: output=ebb72fc16975e06d input=150f00566ffbca6e]*/
+/*[clinic end generated code: output=cf2f662908e2befc input=150f00566ffbca6e]*/
 {
     char typecode;