diff --git a/src/mapleall/maple_me/include/alias_class.h b/src/mapleall/maple_me/include/alias_class.h
index 97594707647855c1b221488b1e34472f432ea0f4..474762badd4fe85afaf61daa99ff9afbabd27309 100644
--- a/src/mapleall/maple_me/include/alias_class.h
+++ b/src/mapleall/maple_me/include/alias_class.h
@@ -45,6 +45,10 @@ class AliasElem {
     return ost;
   }
 
+  OriginalSt *GetOst() {
+    return &ost;
+  }
+
   bool IsNotAllDefsSeen() const {
     return notAllDefsSeen;
   }
diff --git a/src/mapleall/maple_me/src/alias_class.cpp b/src/mapleall/maple_me/src/alias_class.cpp
index 43ceb930742bf570221b1af466cba0fcc197ac00..0e9718de645a764dd9e222c6672a86501ef694ed 100644
--- a/src/mapleall/maple_me/src/alias_class.cpp
+++ b/src/mapleall/maple_me/src/alias_class.cpp
@@ -172,7 +172,7 @@ AliasElem *AliasClass::FindOrCreateExtraLevAliasElem(BaseNode &expr, TyIdx tyIdx
     if (ainfo.ae == nullptr) {
       return nullptr;
     }
-  } else if (ainfo.ae == nullptr) {
+  } else if (ainfo.ae == nullptr || IsNullOrDummySymbolOst(ainfo.ae->GetOst())) {
     return FindOrCreateDummyNADSAe();
   }
   OriginalSt *newOst = nullptr;