diff --git a/depends/lua/src/ldo.c b/depends/lua/src/ldo.c
index 316e45c8f..65158df0b 100644
--- a/depends/lua/src/ldo.c
+++ b/depends/lua/src/ldo.c
@@ -767,14 +767,14 @@ static void f_parser (lua_State *L, void *ud) {
   LClosure *cl;
   struct SParser *p = cast(struct SParser *, ud);
   int c = zgetc(p->z);  /* read first character */
-  if (c == LUA_SIGNATURE[0]) {
-    checkmode(L, p->mode, "binary");
-    cl = luaU_undump(L, p->z, p->name);
-  }
-  else {
+  // if (c == LUA_SIGNATURE[0]) {
+  //   checkmode(L, p->mode, "binary");
+  //   cl = luaU_undump(L, p->z, p->name);
+  // }
+  // else {
     checkmode(L, p->mode, "text");
     cl = luaY_parser(L, p->z, &p->buff, &p->dyd, p->name, c);
-  }
+  // }
   lua_assert(cl->nupvalues == cl->p->sizeupvalues);
   luaF_initupvals(L, cl);
 }