1 files changed, 2 insertions, 1 deletions

diff --git a/src/lj_jit.h b/src/lj_jit.h
index 55d6d0df..34f37d02 100644
--- a/src/lj_jit.h
+++ b/src/lj_jit.h
@@ -172,9 +172,10 @@ typedef struct GCtrace {
   SnapShot *snap;       /* Snapshot array. */
   SnapEntry *snapmap;   /* Snapshot map. */
   GCRef startpt;        /* Starting prototype. */
+  MRef startpc;         /* Bytecode PC of starting instruction. */
   BCIns startins;       /* Original bytecode of starting instruction. */
-  MCode *mcode;         /* Start of machine code. */
   MSize szmcode;        /* Size of machine code. */
+  MCode *mcode;         /* Start of machine code. */
   MSize mcloop;         /* Offset of loop start in machine code. */
   uint16_t nchild;      /* Number of child traces (root trace only). */
   uint16_t spadjust;    /* Stack pointer adjustment (offset in bytes). */