diff --git a/demos/TTSCppFrontend/front_demo/front_demo.cpp b/demos/TTSCppFrontend/front_demo/front_demo.cpp
index 44028d2bb..a0bbd5913 100644
--- a/demos/TTSCppFrontend/front_demo/front_demo.cpp
+++ b/demos/TTSCppFrontend/front_demo/front_demo.cpp
@@ -51,7 +51,7 @@ int main(int argc, char** argv) {
 
     // 根据标点进行分句
     LOG(INFO) << "Start to segment sentences by punctuation";
-    front_inst->SplitByPunc(ws_sentence, sentence_part);
+    front_inst->SplitByPunc(ws_sentence, &sentence_part);
     LOG(INFO) << "Segment sentences through punctuation successfully";
 
     // 分句后获取音素id
diff --git a/demos/TTSCppFrontend/src/front/text_normalize.cpp b/demos/TTSCppFrontend/src/front/text_normalize.cpp
index 27fd90dce..0d8e33e33 100644
--- a/demos/TTSCppFrontend/src/front/text_normalize.cpp
+++ b/demos/TTSCppFrontend/src/front/text_normalize.cpp
@@ -51,19 +51,19 @@ int TextNormalizer::Replace(std::wstring *sentence,
 
 // 根据标点符号切分句子
 int TextNormalizer::SplitByPunc(const std::wstring &sentence,
-                                std::vector<std::wstring> &sentence_part) {
+                                std::vector<std::wstring> *sentence_part) {
     std::wstring temp = sentence;
     std::wregex reg(L"[：，；。？！,;?!]");
     std::wsmatch match;
 
     while (std::regex_search(temp, match, reg)) {
-        sentence_part.push_back(
+        sentence_part->push_back(
             temp.substr(0, match.position(0) + match.length(0)));
         Replace(&temp, 0, match.position(0) + match.length(0), L"");
     }
     // 如果最后没有标点符号
     if (temp != L"") {
-        sentence_part.push_back(temp);
+        sentence_part->push_back(temp);
     }
     return 0;
 }
diff --git a/demos/TTSCppFrontend/src/front/text_normalize.h b/demos/TTSCppFrontend/src/front/text_normalize.h
index cd7b6c434..d80d39559 100644
--- a/demos/TTSCppFrontend/src/front/text_normalize.h
+++ b/demos/TTSCppFrontend/src/front/text_normalize.h
@@ -36,7 +36,7 @@ class TextNormalizer {
                 const int &len,
                 const std::wstring &repstr);
     int SplitByPunc(const std::wstring &sentence,
-                    std::vector<std::wstring> &sentence_part);
+                    std::vector<std::wstring> *sentence_part);
 
     std::string CreateTextValue(const std::string &num, bool use_zero = true);
     std::string SingleDigit2Text(const std::string &num_str,