1 files changed, 7 insertions, 0 deletions
diff --git a/random.c b/random.c
index 22c54492e6..76183f9c7a 100644
--- a/random.c
+++ b/random.c
@@ -158,6 +158,13 @@ default_rand(void)
     return rnd;
 }
 
+void
+rb_default_rand_mark(void *ptr)
+{
+    rb_random_mt_t *rnd = (rb_random_mt_t *)ptr;
+    rb_gc_mark(rnd->base.seed);
+}
+
 static rb_random_mt_t *
 default_mt(void)
 {