1 files changed, 1 insertions, 0 deletions

diff --git a/src/lj_opt_loop.c b/src/lj_opt_loop.c
index 4c709c63..df5811a9 100644
--- a/src/lj_opt_loop.c
+++ b/src/lj_opt_loop.c
@@ -225,6 +225,7 @@ static void loop_subst_snap(jit_State *J, SnapShot *osnap,
   /* Setup new snapshot. */
   snap->mapofs = (uint32_t)nmapofs;
   snap->ref = (IRRef1)J->cur.nins;
+  snap->mcofs = 0;
   snap->nslots = nslots;
   snap->topslot = osnap->topslot;
   snap->count = 0;