luaV_finishOp put concat results in wrong stack slot

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lvm.js b/src/lvm.js
index 6e1012c..4d3d5fb 100644
--- a/src/lvm.js
+++ b/src/lvm.js
@@ -54,7 +54,7 @@ const luaV_finishOp = function(L) {
             let top = L.top - 1;  /* top when 'luaT_trybinTM' was called */
             let b = inst.B;  /* first element to concatenate */
             let total = top - 1 - (base + b);  /* yet to concatenate */
-            L.stack[L.top - 2] = L.stack[top];  /* put TM result in proper position */
+            L.stack[top - 2] = L.stack[top];  /* put TM result in proper position */
             if (total > 1) {  /* are there elements to concat? */
                 L.top = top - 1;  /* top is one after last element (at top-2) */
                 luaV_concat(L, total);  /* concat them (may yield again) */