diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b550428..a78083c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -148,6 +148,7 @@ jobs:
 
     - uses: actions/checkout@v4
       with:
+        fetch-depth: 0
         submodules: true
 
     - name: Update apt-get
diff --git a/build-and-run b/build-and-run
index f369793..9765a2c 100755
--- a/build-and-run
+++ b/build-and-run
@@ -76,8 +76,8 @@ simple.example() {
   run "cd output/bin/"
   run "cat ${ProjectRoot}/example.sql ${ProjectRoot}/example-jieba.sql | ./sqlite3"
   run "./simple_cpp_example"
-  run "cd ${ProjectRoot}"
-  run "python3 examples/python3/db_connector.py './output/bin/libsimple'"
+  # run "cd ${ProjectRoot}"
+  # run "python3 examples/python3/db_connector.py './output/bin/libsimple'"
 }
 
 main() {
diff --git a/build-and-run-no-jieba b/build-and-run-no-jieba
index 424b8ec..f262468 100755
--- a/build-and-run-no-jieba
+++ b/build-and-run-no-jieba
@@ -76,8 +76,8 @@ simple.example() {
   run "cd output-no-jieba/bin/"
   run "./sqlite3 < ${ProjectRoot}/example.sql"
   run "./simple_cpp_example"
-  run "cd ${ProjectRoot}"
-  run "python3 examples/python3/db_connector.py"
+  # run "cd ${ProjectRoot}"
+  # run "python3 examples/python3/db_connector.py"
 }
 
 main() {
diff --git a/src/simple_tokenizer.cc b/src/simple_tokenizer.cc
index 983670e..3d7bb7d 100644
--- a/src/simple_tokenizer.cc
+++ b/src/simple_tokenizer.cc
@@ -73,7 +73,16 @@ std::string SimpleTokenizer::tokenize_jieba_query(const char *text, int textLen,
   std::vector<cppjieba::Word> words;
   jieba.Cut(text, words);
   for (auto word : words) {
+    // if all char is the same category, then use that category
+    // otherwise use OTHER
+    // fix https://github.com/wangfenjin/simple/issues/176
     TokenCategory category = from_char(text[word.offset]);
+    for (auto c : word.word) {
+      if (from_char(c) != category) {
+        category = TokenCategory::OTHER;
+        break;
+      }
+    }
     append_result(result, word.word, category, word.offset, flags);
   }
   return result;
diff --git a/test/tokenizer_test.cc b/test/tokenizer_test.cc
index 0246cc3..6f6f4f3 100644
--- a/test/tokenizer_test.cc
+++ b/test/tokenizer_test.cc
@@ -18,6 +18,8 @@ TEST(simple, tokenizer_with_pinyin) {
   query.push_back(R"VAGON(( z+h+o+u* OR zhou* ) AND "杰" AND "伦")VAGON");
   arr.push_back("杰伦 zhou 123");
   query.push_back(R"VAGON("杰" AND "伦" AND ( z+h+o+u* OR zhou* ) AND "123"*)VAGON");
+  arr.push_back("c#");
+  query.push_back(R"VAGON(c* AND "#")VAGON");
   for (int i = 0; i < arr.size(); i++) {
     std::string s = arr[i];
     std::cout << s << " as doc:\n";
@@ -66,6 +68,8 @@ TEST(simple, jieba_tokenizer_with_pinyin) {
   query.push_back(R"VAGON(( z+h+o+u* OR zhou* ) AND "杰伦")VAGON");
   arr.push_back("杰伦 zhou 123");
   query.push_back(R"VAGON("杰伦" AND ( z+h+o+u* OR zhou* ) AND "123"*)VAGON");
+  arr.push_back("c#");
+  query.push_back(R"VAGON("c#")VAGON");
   for (int i = 0; i < arr.size(); i++) {
     std::string s = arr[i];
     std::cout << s << " as doc:\n";