diff --git a/operators/tokenizer/bpe_utils.hpp b/operators/tokenizer/bpe_utils.hpp
index e1ac85e6..4e1e4d91 100644
--- a/operators/tokenizer/bpe_utils.hpp
+++ b/operators/tokenizer/bpe_utils.hpp
@@ -198,7 +198,8 @@ class TokenWithRegularExp {
     std::wsmatch match;
 
     if (std::regex_search(wstr, match, pattern)) {
-        std::u32string_view token = std::u32string_view(W2Ustring(match.str()).data(), match.str().size());
+        std::u32string temp = W2Ustring(match.str());
+        std::u32string_view token = std::u32string_view(temp.data(), match.str().size());
         m_text = std::u32string(match.suffix().first, match.suffix().second); // Update text to the remaining part after the match
         return token;
     } else {