diff --git a/bin/decoder_main.cc b/bin/decoder_main.cc
index b05b5f5..ef05cfa 100644
--- a/bin/decoder_main.cc
+++ b/bin/decoder_main.cc
@@ -19,10 +19,10 @@
 #include "decoder/params.h"
 #include "frontend/wav.h"
 #include "utils/flags.h"
-#include "utils/string.h"
+#include "utils/wn_string.h"
 #include "utils/thread_pool.h"
 #include "utils/timer.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 DEFINE_bool(simulate_streaming, false, "simulate streaming input");
 DEFINE_bool(output_nbest, false, "output n-best of decode result");
diff --git a/bin/label_checker_main.cc b/bin/label_checker_main.cc
index a06dfe1..5c460f7 100644
--- a/bin/label_checker_main.cc
+++ b/bin/label_checker_main.cc
@@ -20,7 +20,7 @@
 #include "decoder/params.h"
 #include "frontend/wav.h"
 #include "utils/flags.h"
-#include "utils/string.h"
+#include "utils/wn_string.h"
 
 DEFINE_string(text, "", "kaldi style text input file");
 DEFINE_string(wav_scp, "", "kaldi style wav scp");
diff --git a/decoder/asr_decoder.h b/decoder/asr_decoder.h
index 32688f2..a69f9fd 100644
--- a/decoder/asr_decoder.h
+++ b/decoder/asr_decoder.h
@@ -33,7 +33,7 @@
 #include "decoder/search_interface.h"
 #include "frontend/feature_pipeline.h"
 #include "../post_processor/processor/post_processor.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/asr_model.h b/decoder/asr_model.h
index d100dd8..36ca854 100644
--- a/decoder/asr_model.h
+++ b/decoder/asr_model.h
@@ -10,7 +10,7 @@
 #include <vector>
 
 #include "utils/timer.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/context_graph.cc b/decoder/context_graph.cc
index 1fd3e16..09ded50 100644
--- a/decoder/context_graph.cc
+++ b/decoder/context_graph.cc
@@ -20,8 +20,8 @@
 
 #include "fst/determinize.h"
 
-#include "utils/string.h"
-#include "utils/utils.h"
+#include "utils/wn_string.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/ctc_prefix_beam_search.cc b/decoder/ctc_prefix_beam_search.cc
index fa01f0f..3bcf50b 100644
--- a/decoder/ctc_prefix_beam_search.cc
+++ b/decoder/ctc_prefix_beam_search.cc
@@ -20,7 +20,7 @@
 #include <utility>
 
 #include "utils/log.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/ctc_prefix_beam_search.h b/decoder/ctc_prefix_beam_search.h
index 3f88285..678ae26 100644
--- a/decoder/ctc_prefix_beam_search.h
+++ b/decoder/ctc_prefix_beam_search.h
@@ -22,7 +22,7 @@
 
 #include "decoder/context_graph.h"
 #include "decoder/search_interface.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/ctc_wfst_beam_search.h b/decoder/ctc_wfst_beam_search.h
index c02048b..92ff812 100644
--- a/decoder/ctc_wfst_beam_search.h
+++ b/decoder/ctc_wfst_beam_search.h
@@ -21,7 +21,7 @@
 #include "decoder/context_graph.h"
 #include "decoder/search_interface.h"
 #include "kaldi/decoder/lattice-faster-online-decoder.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/onnx_asr_model.cc b/decoder/onnx_asr_model.cc
index fc7afc7..688a502 100644
--- a/decoder/onnx_asr_model.cc
+++ b/decoder/onnx_asr_model.cc
@@ -21,7 +21,7 @@
 #include <memory>
 #include <utility>
 
-#include "utils/string.h"
+#include "utils/wn_string.h"
 
 namespace wenet {
 
diff --git a/decoder/onnx_asr_model.h b/decoder/onnx_asr_model.h
index f5d9e9a..b3e5c0a 100644
--- a/decoder/onnx_asr_model.h
+++ b/decoder/onnx_asr_model.h
@@ -26,7 +26,7 @@
 
 #include "decoder/asr_model.h"
 #include "utils/log.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/decoder/params.h b/decoder/params.h
index 3511e7a..9de694e 100644
--- a/decoder/params.h
+++ b/decoder/params.h
@@ -41,7 +41,7 @@
 #include "../post_processor/processor/post_processor.h"
 #include "utils/file.h"
 #include "utils/flags.h"
-#include "utils/string.h"
+#include "utils/wn_string.h"
 
 DEFINE_int32(device_id, 0, "set XPU DeviceID for ASR model");
 
diff --git a/decoder/torch_asr_model.h b/decoder/torch_asr_model.h
index a3cebe0..7bb7d82 100644
--- a/decoder/torch_asr_model.h
+++ b/decoder/torch_asr_model.h
@@ -26,7 +26,7 @@
 #endif
 
 #include "decoder/asr_model.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/grpc/grpc_client.h b/grpc/grpc_client.h
index 36e36a0..b221513 100644
--- a/grpc/grpc_client.h
+++ b/grpc/grpc_client.h
@@ -26,7 +26,7 @@
 #include <thread>
 
 #include "grpc/wenet.grpc.pb.h"
-#include "utils/utils.h"
+#include "../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/post_processor/processor/post_processor.cc b/post_processor/processor/post_processor.cc
index 486d779..db86453 100644
--- a/post_processor/processor/post_processor.cc
+++ b/post_processor/processor/post_processor.cc
@@ -17,7 +17,7 @@
 #include <sstream>
 #include <vector>
 #include "wetext_processor.h"
-#include "../../utils/string.h"
+#include "../../utils/wn_string.h"
 
 namespace wenet {
 void PostProcessor::InitITNResource(const std::string& tagger_path,
diff --git a/post_processor/processor/post_processor.h b/post_processor/processor/post_processor.h
index 8e99c71..b798b39 100644
--- a/post_processor/processor/post_processor.h
+++ b/post_processor/processor/post_processor.h
@@ -20,7 +20,7 @@
 #include <string>
 #include <utility>
 #include "wetext_processor.h"
-#include "../../utils/utils.h"
+#include "../../utils/wn_utils.h"
 
 namespace wenet {
 
diff --git a/utils/CMakeLists.txt b/utils/CMakeLists.txt
index 6863626..a8a1b24 100644
--- a/utils/CMakeLists.txt
+++ b/utils/CMakeLists.txt
@@ -1,6 +1,7 @@
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 add_library(utils STATIC
-  string.cc
-  utils.cc
+        wn_string.cc
+        wn_utils.cc
 )
 
 if(NOT ANDROID)
diff --git a/utils/blocking_queue.h b/utils/blocking_queue.h
index 9bf0127..658f68b 100644
--- a/utils/blocking_queue.h
+++ b/utils/blocking_queue.h
@@ -22,7 +22,7 @@
 #include <utility>
 #include <vector>
 
-#include "utils/utils.h"
+#include "wn_utils.h"
 
 namespace wenet {
 
diff --git a/utils/string.cc b/utils/wn_string.cc
similarity index 98%
rename from utils/string.cc
rename to utils/wn_string.cc
index ea9609b..064d7e6 100644
--- a/utils/string.cc
+++ b/utils/wn_string.cc
@@ -12,14 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "utils/string.h"
+#include "wn_string.h"
 
 #include <sstream>
 #include <string>
 #include <vector>
 
-#include "utils/log.h"
-#include "utils/utils.h"
+#include "log.h"
+#include "wn_utils.h"
 
 namespace wenet {
 
diff --git a/utils/string.h b/utils/wn_string.h
similarity index 99%
rename from utils/string.h
rename to utils/wn_string.h
index bf7a52a..3b8a930 100644
--- a/utils/string.h
+++ b/utils/wn_string.h
@@ -20,7 +20,6 @@
 #include <memory>
 #include <string>
 #include <vector>
-
 #include "fst/symbol-table.h"
 
 namespace wenet {
diff --git a/utils/utils.cc b/utils/wn_utils.cc
similarity index 98%
rename from utils/utils.cc
rename to utils/wn_utils.cc
index c37e36c..5d8a2a5 100644
--- a/utils/utils.cc
+++ b/utils/wn_utils.cc
@@ -12,7 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "utils/utils.h"
+#include "wn_utils.h"
+#include "log.h"
 
 #include <algorithm>
 #include <cmath>
@@ -21,7 +22,7 @@
 #include <utility>
 #include <vector>
 
-#include "utils/log.h"
+
 
 namespace wenet {
 
diff --git a/utils/utils.h b/utils/wn_utils.h
similarity index 100%
rename from utils/utils.h
rename to utils/wn_utils.h