Initialize loop variables of list_for_each for MS VC

1 files changed, 1 insertions, 1 deletions

diff --git a/vm.c b/vm.c
index f2ce857d96..15b305e8b9 100644
--- a/vm.c
+++ b/vm.c
@@ -2324,7 +2324,7 @@ rb_vm_mark(void *ptr)
     RUBY_GC_INFO("-------------------------------------------------\n");
     if (ptr) {
 	rb_vm_t *vm = ptr;
-        rb_ractor_t *r;
+        rb_ractor_t *r = 0;
         long i, len;
         const VALUE *obj_ary;