1 files changed, 2 insertions, 1 deletions
diff --git a/src/lundump.js b/src/lundump.js
index 1891451..4931fe8 100644
--- a/src/lundump.js
+++ b/src/lundump.js
@@ -265,7 +265,8 @@ const luaU_undump = function(L, Z, name) {
     let S = new BytecodeParser(L, Z, name);
     S.checkHeader();
     let cl = lfunc.luaF_newLclosure(L, S.readByte());
-    L.stack[L.top++] = new lobject.TValue(defs.CT.LUA_TLCL, cl);
+    ldo.luaD_inctop(L);
+    L.stack[L.top-1] = new lobject.TValue(defs.CT.LUA_TLCL, cl);
     cl.p = new lfunc.Proto(L);
     S.readFunction(cl.p, null);
     assert(cl.nupvalues === cl.p.upvalues.length);