1 files changed, 2 insertions, 0 deletions

diff --git a/gc.c b/gc.c
index 4dbf5d6c65..25a2016c53 100644
--- a/gc.c
+++ b/gc.c
@@ -1784,6 +1784,8 @@ ruby_set_stack_size(size_t size)
     rb_gc_stack_maxsize = size;
 }
 
+#undef Init_stack
+
 void
 Init_stack(VALUE *addr)
 {