Merge heads
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 0439193..c1a7f95 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -750,7 +750,8 @@
 		Include/warnings.h \
 		Include/weakrefobject.h \
 		pyconfig.h \
-		$(PARSER_HEADERS)
+		$(PARSER_HEADERS) \
+		$(AST_H)
 
 $(LIBRARY_OBJS) $(MODOBJS) Modules/python.o: $(PYTHON_HEADERS)