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-rw-r--r--src/backtrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backtrace.c b/src/backtrace.c
index 54927ec00..7c86d962e 100644
--- a/src/backtrace.c
+++ b/src/backtrace.c
@@ -81,7 +81,7 @@ mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func fun
mrb_irep *irep = ci->proc->body.irep;
mrb_code *pc;
- if (mrb->c->cibase[i].err) {
+ if (mrb->c->cibase[i].err && irep && mrb->c->cibase[i].err - irep->iseq < irep->ilen) {
pc = mrb->c->cibase[i].err;
}
else if (i+1 <= ciidx) {