Simplify ensure stack management; fix #3683

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gc.c b/src/gc.c
index 01bf2fd32..4f943b7a0 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -933,7 +933,7 @@ gc_gray_mark(mrb_state *mrb, mrb_gc *gc, struct RBasic *obj)
       children += i;
 
       /* mark ensure stack */
-      children += (c->ci) ? c->ci->eidx : 0;
+      children += c->eidx;
 
       /* mark closure */
       if (c->cibase) {