Oops, missed some renamings.
diff --git a/Python/graminit.c b/Python/graminit.c
index 7b31a31..ca08e00 100644
--- a/Python/graminit.c
+++ b/Python/graminit.c
@@ -1445,7 +1445,7 @@
 	{1, "class"},
 	{312, 0},
 };
-grammar gram = {
+grammar _PyParser_Grammar = {
 	57,
 	dfas,
 	{124, labels},