1 files changed, 1 insertions, 1 deletions

diff --git a/src/lj_bcread.c b/src/lj_bcread.c
index c5d4cd9d..30479230 100644
--- a/src/lj_bcread.c
+++ b/src/lj_bcread.c
@@ -457,7 +457,7 @@ GCproto *lj_bcread(LexState *ls)
     setprotoV(L, L->top, pt);
     incr_top(L);
   }
-  if (ls->n != 0 || L->top-1 != bcread_oldtop(L, ls))
+  if ((int32_t)ls->n > 0 || L->top-1 != bcread_oldtop(L, ls))
     bcread_error(ls, LJ_ERR_BCBAD);
   /* Pop off last prototype. */
   L->top--;