1 files changed, 1 insertions, 1 deletions
diff --git a/src/lobject.js b/src/lobject.js
index d816323..a67147a 100644
--- a/src/lobject.js
+++ b/src/lobject.js
@@ -600,7 +600,7 @@ const luaO_pushvfstring = function(L, fmt, argp) {
                 pushstr(L, defs.to_luastring(String.fromCodePoint(argp[a++])));
                 break;
             case char['%']:
-                pushstr(L, [char['%']]);
+                pushstr(L, defs.to_luastring("%", true));
                 break;
             default:
                 ldebug.luaG_runerror(L, defs.to_luastring("invalid option '%%%c' to 'lua_pushfstring'"), fmt[e + 1]);