1 files changed, 1 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index a54fdce6b9..222a868b53 100644
--- a/eval.c
+++ b/eval.c
@@ -13515,6 +13515,7 @@ rb_thread_atfork()
 {
     rb_thread_t th;
 
+    rb_reset_random_seed();
     if (rb_thread_alone()) return;
     FOREACH_THREAD(th) {
 	if (th != curr_thread) {