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-rw-r--r--vm_insnhelper.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index 98ca16cdd3..bd3620a95f 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -577,7 +577,7 @@ vm_setivar(VALUE obj, ID id, VALUE val, IC ic, rb_call_info_t *ci, int is_attr)
VALUE *ptr = ROBJECT_IVPTR(obj);
if (index < len) {
- ptr[index] = val;
+ OBJ_WRITE(obj, &ptr[index], val);
return val; /* inline cache hit */
}
}