diff --git a/Vitis-AI-Library/facefeature/include/vitis/ai/facefeature.hpp b/Vitis-AI-Library/facefeature/include/vitis/ai/facefeature.hpp
index 615f91397..3f520db9e 100644
--- a/Vitis-AI-Library/facefeature/include/vitis/ai/facefeature.hpp
+++ b/Vitis-AI-Library/facefeature/include/vitis/ai/facefeature.hpp
@@ -44,14 +44,14 @@ namespace ai {
  * Float sample code :
  * @code
    cv:Mat image = cv::imread("test_face.jpg");
-   auto network  = xilinx::ai::FaceFeature::create("facerec_resnet20", true);
+   auto network  = vitis::ai::FaceFeature::create("facerec_resnet20", true);
    auto result = network->run(image);
    @endcode
  *
  * Fixed sample code :
  * @code
    cv:Mat image = cv::imread("test_face.jpg");
-   auto network  = xilinx::ai::FaceFeature::create("facerec_resnet20", true);
+   auto network  = vitis::ai::FaceFeature::create("facerec_resnet20", true);
    auto result = network->run_fixed(image);
    @endcode
  *
@@ -80,8 +80,7 @@ namespace ai {
      return (float)dot;
   }
 
-  float feature_compare(const int8_t *feature, const int8_t *feature_lib,
-                      float fuck = 0) {
+  float feature_compare(const int8_t *feature, const int8_t *feature_lib) {
      float norm = feature_norm(feature);
      float feature_norm_lib = feature_norm(feature_lib);
      return feature_dot(feature, feature_lib) * norm * feature_norm_lib;
diff --git a/Vitis-AI-Library/facefeature/test/test_compare.cpp b/Vitis-AI-Library/facefeature/test/test_compare.cpp
index 7084269be..3e1ecf12e 100644
--- a/Vitis-AI-Library/facefeature/test/test_compare.cpp
+++ b/Vitis-AI-Library/facefeature/test/test_compare.cpp
@@ -36,8 +36,7 @@ static float feature_dot(const int8_t *f1, const int8_t *f2) {
   return (float)dot;
 }
 
-float feature_compare(const int8_t *feature, const int8_t *feature_lib,
-                      float fuck = 0) {
+float feature_compare(const int8_t *feature, const int8_t *feature_lib) {
   float norm = feature_norm(feature);
   float feature_norm_lib = feature_norm(feature_lib);
   return feature_dot(feature, feature_lib) * norm * feature_norm_lib;
@@ -45,8 +44,6 @@ float feature_compare(const int8_t *feature, const int8_t *feature_lib,
 
 float score_map(float score) { return 1.0 / (1 + exp(-12.4 * score + 3.763)); }
 
-
-
 int main(int argc,char* argv[]){
     if(argc < 4){
         std::cout << "usage : " << argv[0] << "<model_name>"
diff --git a/Vitis-AI-Library/facefeature/test/test_compare_l64.cpp b/Vitis-AI-Library/facefeature/test/test_compare_l64.cpp
index 91c1dfd2a..f02df996e 100644
--- a/Vitis-AI-Library/facefeature/test/test_compare_l64.cpp
+++ b/Vitis-AI-Library/facefeature/test/test_compare_l64.cpp
@@ -36,8 +36,7 @@ static float feature_dot(const int8_t *f1, const int8_t *f2) {
   return (float)dot;
 }
 
-float feature_compare(const int8_t *feature, const int8_t *feature_lib,
-                      float fuck = 0) {
+float feature_compare(const int8_t *feature, const int8_t *feature_lib) {
   float norm = feature_norm(feature);
   float feature_norm_lib = feature_norm(feature_lib);
   return feature_dot(feature, feature_lib) * norm * feature_norm_lib;