diff --git a/decoder/params.h b/decoder/params.h
index 59c8ff9..c3672c8 100644
--- a/decoder/params.h
+++ b/decoder/params.h
@@ -261,21 +261,21 @@ std::shared_ptr<DecodeResource> InitDecodeResourceFromFlags() {
   resource->post_processor =
       std::make_shared<PostProcessor>(std::move(post_process_opts));
 
-//  if (!FLAGS_itn_model_dir.empty()) {  // With ITN
-//    std::string itn_tagger_path =
-//        wenet::JoinPath(FLAGS_itn_model_dir, "zh_itn_tagger.fst");
-//    std::string itn_verbalizer_path =
-//        wenet::JoinPath(FLAGS_itn_model_dir, "zh_itn_verbalizer.fst");
-//    if (wenet::FileExists(itn_tagger_path) &&
-//        wenet::FileExists(itn_verbalizer_path)) {
-//      LOG(INFO) << "Reading ITN fst" << FLAGS_itn_model_dir;
-//      post_process_opts.itn = true;
-//      auto postprocessor =
-//          std::make_shared<wenet::PostProcessor>(std::move(post_process_opts));
-//      postprocessor->InitITNResource(itn_tagger_path, itn_verbalizer_path);
-//      resource->post_processor = postprocessor;
-//    }
-//  }
+  if (!FLAGS_itn_model_dir.empty()) {  // With ITN
+    std::string itn_tagger_path =
+        wenet::JoinPath(FLAGS_itn_model_dir, "zh_itn_tagger.fst");
+    std::string itn_verbalizer_path =
+        wenet::JoinPath(FLAGS_itn_model_dir, "zh_itn_verbalizer.fst");
+    if (wenet::FileExists(itn_tagger_path) &&
+        wenet::FileExists(itn_verbalizer_path)) {
+      LOG(INFO) << "Reading ITN fst" << FLAGS_itn_model_dir;
+      post_process_opts.itn = true;
+      auto postprocessor =
+          std::make_shared<wenet::PostProcessor>(std::move(post_process_opts));
+      postprocessor->InitITNResource(itn_tagger_path, itn_verbalizer_path);
+      resource->post_processor = postprocessor;
+    }
+  }
 
   return resource;
 }
diff --git a/post_processor/post_processor.cc b/post_processor/post_processor.cc
index 8b752f3..4f070f8 100644
--- a/post_processor/post_processor.cc
+++ b/post_processor/post_processor.cc
@@ -16,9 +16,16 @@
 #include "post_processor/post_processor.h"
 #include <sstream>
 #include <vector>
+#include "processor/wetext_processor.h"
 #include "utils/string.h"
 
 namespace wenet {
+void PostProcessor::InitITNResource(const std::string& tagger_path,
+                                    const std::string& verbalizer_path) {
+  auto itn_processor =
+      std::make_shared<wetext::Processor>(tagger_path, verbalizer_path);
+  itn_resource = itn_processor;
+}
 
 std::string PostProcessor::ProcessSpace(const std::string& str) {
   std::string result = str;
@@ -78,11 +85,11 @@ std::string PostProcessor::Process(const std::string& str, bool finish) {
   result = ProcessSymbols(str);
   result = ProcessSpace(result);
   // TODO(xcsong): do punctuation if finish == true
-//  if (finish == true && opts_.itn) {
-//    if (nullptr != itn_resource) {
-//      result = itn_resource->Normalize(result);
-//    }
-//  }
+  if (finish == true && opts_.itn) {
+    if (nullptr != itn_resource) {
+      result = itn_resource->Normalize(result);
+    }
+  }
   return result;
 }
 
diff --git a/post_processor/post_processor.h b/post_processor/post_processor.h
index 2699cbf..b05aee6 100644
--- a/post_processor/post_processor.h
+++ b/post_processor/post_processor.h
@@ -19,6 +19,7 @@
 #include <memory>
 #include <string>
 #include <utility>
+#include "processor/wetext_processor.h"
 #include "utils/utils.h"
 
 namespace wenet {
@@ -51,8 +52,8 @@ struct PostProcessOptions {
 // Post Processor
 class PostProcessor {
  public:
-//  explicit PostProcessor(PostProcessOptions&& opts) : opts_(std::move(opts)) {}
-//  explicit PostProcessor(const PostProcessOptions& opts) : opts_(opts) {}
+  explicit PostProcessor(PostProcessOptions&& opts) : opts_(std::move(opts)) {}
+  explicit PostProcessor(const PostProcessOptions& opts) : opts_(opts) {}
   // call other functions to do post processing
   std::string Process(const std::string& str, bool finish);
   // process spaces according to configurations
@@ -63,10 +64,12 @@ class PostProcessor {
 
   void InitITNResource(const std::string& tagger_path,
                        const std::string& verbalizer_path);
-  private:
-//    std::shared_ptr<PostProcessor> itn_resource = nullptr;
-    const PostProcessOptions opts_;
-  public:
+
+ private:
+  std::shared_ptr<wetext::Processor> itn_resource = nullptr;
+  const PostProcessOptions opts_;
+
+ public:
   WENET_DISALLOW_COPY_AND_ASSIGN(PostProcessor);
 };