diff --git a/src/mecab/src/dictionary.cpp b/src/mecab/src/dictionary.cpp
index 04b080c..a95053b 100644
--- a/src/mecab/src/dictionary.cpp
+++ b/src/mecab/src/dictionary.cpp
@@ -319,7 +319,8 @@ bool Dictionary::compile(const Param &param,
       }
     }
 
-    std::cout << "reading " << dics[i] << " ... ";
+    if (!MeCab::quiet_mode)
+      std::cout << "reading " << dics[i] << " ... ";
 
     scoped_fixed_array<char, BUF_SIZE> line;
     size_t num = 0;
@@ -455,7 +456,8 @@ bool Dictionary::compile(const Param &param,
       ++lexsize;
     }
 
-    std::cout << num << std::endl;
+    if (!MeCab::quiet_mode)
+      std::cout << num << std::endl;
   }
 
   if (wakati) {
diff --git a/src/mecab/src/dictionary_compiler.cpp b/src/mecab/src/dictionary_compiler.cpp
index 9155398..8b443d5 100644
--- a/src/mecab/src/dictionary_compiler.cpp
+++ b/src/mecab/src/dictionary_compiler.cpp
@@ -7,6 +7,7 @@
 #include <vector>
 #include <string>
 #include "char_property.h"
+#include "common.h"
 #include "connector.h"
 #include "dictionary.h"
 #include "dictionary_rewriter.h"
@@ -20,6 +21,8 @@
 
 namespace MeCab {
 
+bool quiet_mode = false;
+
 class DictionaryComplier {
  public:
   static int run(int argc, char **argv) {
@@ -48,6 +51,7 @@ class DictionaryComplier {
       { "posid",     'p',  0,   0,   "assign Part-of-speech id" },
       { "node-format", 'F', 0,  "STR",
         "use STR as the user defined node format" },
+      { "quiet",     'q',  0,   0,   "don't print progress"  },
       { "version",   'v',  0,   0,   "show the version and exit."  },
       { "help",      'h',  0,   0,   "show this help and exit."  },
       { 0, 0, 0, 0 }
@@ -74,8 +78,11 @@ class DictionaryComplier {
     bool opt_model = param.get<bool>("build-model");
     bool opt_assign_user_dictionary_costs = param.get<bool>
         ("assign-user-dictionary-costs");
+    bool opt_quiet = param.get<bool>("quiet");
     const std::string userdic = param.get<std::string>("userdic");
 
+    MeCab::quiet_mode = opt_quiet;
+
 #define DCONF(file) create_filename(dicdir, std::string(file)).c_str()
 #define OCONF(file) create_filename(outdir, std::string(file)).c_str()
 
@@ -124,8 +131,10 @@ class DictionaryComplier {
                                 DCONF(MODEL_DEF_FILE),
                                 OCONF(MODEL_FILE));
         } else {
-          std::cout << DCONF(MODEL_DEF_FILE)
-                    << " is not found. skipped." << std::endl;
+          if (!opt_quiet) {
+            std::cout << DCONF(MODEL_DEF_FILE)
+                      << " is not found. skipped." << std::endl;
+          }
         }
       }
 
@@ -141,7 +150,9 @@ class DictionaryComplier {
       }
     }
 
-    std::cout << "\ndone!\n";
+    if (!opt_quiet) {
+      std::cout << "\ndone!\n";
+    }
 
     return 0;
   }
diff --git a/src/mecab/src/dictionary_generator.cpp b/src/mecab/src/dictionary_generator.cpp
index fdbbf26..6f133dc 100644
--- a/src/mecab/src/dictionary_generator.cpp
+++ b/src/mecab/src/dictionary_generator.cpp
@@ -47,7 +47,8 @@ class DictionaryGenerator {
     std::ifstream ifs(WPATH(filename));
     CHECK_DIE(ifs) << "no such file or directory: " << filename;
     scoped_fixed_array<char, BUF_SIZE> line;
-    std::cout << "reading " << filename << " ... " << std::flush;
+    if (!MeCab::quiet_mode)
+      std::cout << "reading " << filename << " ... " << std::flush;
     size_t num = 0;
     std::string feature, ufeature, lfeature, rfeature;
     char *col[8];
@@ -252,9 +253,10 @@ class DictionaryGenerator {
       gencid(it->c_str(), &rewrite, &cid);
     }
 
-    std::cout << "emitting "
-              << OCONF(LEFT_ID_FILE) << "/ "
-              << OCONF(RIGHT_ID_FILE) << std::endl;
+    if (!MeCab::quiet_mode)
+      std::cout << "emitting "
+                << OCONF(LEFT_ID_FILE) << "/ "
+                << OCONF(RIGHT_ID_FILE) << std::endl;
 
     cid.build();
     cid.save(OCONF(LEFT_ID_FILE), OCONF(RIGHT_ID_FILE));
diff --git a/src/mecab/src/utils.cpp b/src/mecab/src/utils.cpp
index 7bcc30f..1c1f9a0 100644
--- a/src/mecab/src/utils.cpp
+++ b/src/mecab/src/utils.cpp
@@ -278,6 +278,8 @@ bool escape_csv_element(std::string *w) {
 }
 
 int progress_bar(const char* message, size_t current, size_t total) {
+  if (MeCab::quiet_mode)
+    return 1;
   static char bar[] = "###########################################";
   static int scale = sizeof(bar) - 1;
   static int prev = 0;
diff --git a/src/mecab/src/utils.h b/src/mecab/src/utils.h
index ea5c9e9..00f3b95 100644
--- a/src/mecab/src/utils.h
+++ b/src/mecab/src/utils.h
@@ -38,6 +38,8 @@ typedef unsigned __int64 uint64_t;
 
 namespace MeCab {
 
+extern bool quiet_mode;
+
 class Param;
 
 enum { EUC_JP, CP932, UTF8, UTF16, UTF16LE, UTF16BE, ASCII };