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-rw-r--r--enumerator.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/enumerator.c b/enumerator.c
index e348e68aa0..366c64c28a 100644
--- a/enumerator.c
+++ b/enumerator.c
@@ -408,7 +408,7 @@ enumerator_next(VALUE obj)
VALUE curr, v;
curr = rb_fiber_current();
- if (!e->fib) {
+ if (!e->fib || !rb_fiber_alive_p(e->fib)) {
next_init(obj, e);
}