1 files changed, 1 insertions, 1 deletions
diff --git a/src/backtrace.c b/src/backtrace.c
index ddeb2a3ca..f2cf2cd0f 100644
--- a/src/backtrace.c
+++ b/src/backtrace.c
@@ -51,7 +51,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, mrb_code *pc0, each_backtrace_fu
       pc = mrb->c->cibase[i].err;
     }
     else if (i+1 <= ciidx) {
-      pc = mrb->c->cibase[i+1].pc - 1;
+      pc = &mrb->c->cibase[i+1].pc[-1];
     }
     else {
       pc = pc0;