diff --git a/src/mapleall/maple_ir/src/mir_function.cpp b/src/mapleall/maple_ir/src/mir_function.cpp
index 02aaefedc36988396ad02d8279c1b96a58f2f5c5..cd879143e384edf93983d6e3d52955aae4b8ad54 100644
--- a/src/mapleall/maple_ir/src/mir_function.cpp
+++ b/src/mapleall/maple_ir/src/mir_function.cpp
@@ -486,9 +486,11 @@ void MIRFunction::SetBaseClassFuncNames(GStrIdx strIdx) {
     std::string funcNameWithType = name.substr(pos + width, name.length() - pos - width);
     baseFuncWithTypeStrIdx = GlobalTables::GetStrTable().GetOrCreateStrIdxFromName(funcNameWithType);
     size_t index = name.find(namemangler::kRightBracketStr);
-    ASSERT(index != std::string::npos, "Invalid name, cannot find '_29' in name");
-    size_t posEnd = index + (std::string(namemangler::kRightBracketStr)).length();
-    funcNameWithType = name.substr(pos + width, posEnd - pos - width);
+    if (index != std::string::npos) {
+      size_t posEnd = index + (std::string(namemangler::kRightBracketStr)).length();
+      funcNameWithType = name.substr(pos + width, posEnd - pos - width);
+    }
+    baseFuncSigStrIdx = GlobalTables::GetStrTable().GetOrCreateStrIdxFromName(funcNameWithType);
     size_t newPos = name.find(delimiter, pos + width);
     while (newPos != std::string::npos && (name[newPos - 1] == '_' && name[newPos - 2] != '_')) {
       newPos = name.find(delimiter, newPos + width);