1 files changed, 1 insertions, 1 deletions

diff --git a/src/yuescript/yue_parser.cpp b/src/yuescript/yue_parser.cpp
index 0cf7f05..07c1120 100644
--- a/src/yuescript/yue_parser.cpp
+++ b/src/yuescript/yue_parser.cpp
@@ -1130,7 +1130,7 @@ ParseInfo YueParser::parse(std::string_view astName, std::string_view codes, boo
         if (it != _rules.end()) {
                 return parse(codes, *it->second, lax);
         }
-        return {};
+        return {.error = ParseInfo::Error{"invalid rule: "s + std::string{astName}, 1, 1}};
 }
 
 bool YueParser::match(std::string_view astName, std::string_view codes) {