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-rw-r--r--src/lstrlib.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lstrlib.js b/src/lstrlib.js
index 41c48ef..56817a0 100644
--- a/src/lstrlib.js
+++ b/src/lstrlib.js
@@ -1107,7 +1107,7 @@ const push_onecapture = function(ms, i, s, e) {
if (i === 0)
lua.lua_pushlstring(ms.L, ms.src.slice(s), e - s); /* add whole match */
else
- lauxlib.luaL_error(ms.L, lua.to_luastring(`invalid capture index %${i + 1}`));
+ lauxlib.luaL_error(ms.L, lua.to_luastring("invalid capture index %%%d"), i + 1);
} else {
let l = ms.capture[i].len;
if (l === CAP_UNFINISHED) lauxlib.luaL_error(ms.L, lua.to_luastring("unfinished capture", true));