diff --git a/src/libwrapper.cpp b/src/libwrapper.cpp
index b852e7f..f900edc 100644
--- a/src/libwrapper.cpp
+++ b/src/libwrapper.cpp
@@ -314,7 +314,7 @@ public:
 private:
     FILE *output;
 };
-}
+} // namespace
 
 search_result Library::process_phrase(const char *loc_str, IReadLine &io, bool force)
 {
@@ -330,7 +330,7 @@ search_result Library::process_phrase(const char *loc_str, IReadLine &io, bool f
     gsize bytes_read;
     gsize bytes_written;
     glib::Error err;
-	search_result rval = SEARCH_SUCCESS;
+    search_result rval = SEARCH_SUCCESS;
     glib::CharStr str;
     if (!utf8_input_)
         str.reset(g_locale_to_utf8(loc_str, -1, &bytes_read, &bytes_written, get_addr(err)));
@@ -444,7 +444,7 @@ search_result Library::process_phrase(const char *loc_str, IReadLine &io, bool f
             loc_str = utf8_to_locale_ign_err(get_impl(str));
         if (!json_)
             printf(_("Nothing similar to %s, sorry :(\n"), utf8_output_ ? get_impl(str) : loc_str.c_str());
-		rval = SEARCH_NO_RESULT;
+        rval = SEARCH_NO_RESULT;
     }
 
     if (json_) {
diff --git a/src/libwrapper.hpp b/src/libwrapper.hpp
index 154161b..f9496da 100644
--- a/src/libwrapper.hpp
+++ b/src/libwrapper.hpp
@@ -25,9 +25,9 @@ typedef std::vector<TSearchResult> TSearchResultList;
 
 //possible return values for Library.process_phase()
 enum search_result {
-	SEARCH_SUCCESS = 0,
-	SEARCH_FAILURE,
-	SEARCH_NO_RESULT
+    SEARCH_SUCCESS = 0,
+    SEARCH_FAILURE,
+    SEARCH_NO_RESULT
 };
 
 //this class is wrapper around Dicts class for easy use
diff --git a/src/readline.cpp b/src/readline.cpp
index 2204c17..60a01e8 100644
--- a/src/readline.cpp
+++ b/src/readline.cpp
@@ -57,7 +57,7 @@ public:
         return stdio_getline(stdin, line);
     }
 };
-}
+} // namespace
 #else
 
 namespace
@@ -72,7 +72,7 @@ std::string get_hist_file_path()
     const std::string hist_file_path = std::string(g_get_home_dir()) + G_DIR_SEPARATOR + ".sdcv_history";
     if (g_file_test(hist_file_path.c_str(), G_FILE_TEST_IS_REGULAR))
         return hist_file_path;
-    
+
     return std::string(g_get_user_data_dir()) + G_DIR_SEPARATOR + "sdcv_history";
 }
 
@@ -116,7 +116,7 @@ public:
         add_history(phrase.c_str());
     }
 };
-}
+} // namespace
 #endif //WITH_READLINE
 
 IReadLine *create_readline_object()
diff --git a/src/sdcv.cpp b/src/sdcv.cpp
index 16466ad..ca222b8 100644
--- a/src/sdcv.cpp
+++ b/src/sdcv.cpp
@@ -53,7 +53,7 @@ static void free_str_array(gchar **arr)
         g_free(*p);
     g_free(arr);
 }
-}
+} // namespace
 namespace glib
 {
 using StrArr = ResourceWrapper<gchar *, gchar *, free_str_array>;
@@ -61,13 +61,14 @@ using StrArr = ResourceWrapper<gchar *, gchar *, free_str_array>;
 
 static void list_dicts(const std::list<std::string> &dicts_dir_list, bool use_json);
 
-int main(int argc, char *argv[]) try {
+int main(int argc, char *argv[])
+try {
     setlocale(LC_ALL, "");
 #if ENABLE_NLS
     bindtextdomain("sdcv",
                    //"./locale"//< for testing
                    GETTEXT_TRANSLATIONS_PATH //< should be
-                   );
+    );
     textdomain("sdcv");
 #endif
 
@@ -210,7 +211,7 @@ int main(int argc, char *argv[]) try {
 
     std::unique_ptr<IReadLine> io(create_readline_object());
     if (optind < argc) {
-		search_result rval = SEARCH_SUCCESS;
+        search_result rval = SEARCH_SUCCESS;
         for (int i = optind; i < argc; ++i)
             if ((rval = lib.process_phrase(argv[i], *io, non_interactive)) != SEARCH_SUCCESS) {
                 return rval;
diff --git a/src/stardict_lib.cpp b/src/stardict_lib.cpp
index a911ddd..18e957b 100644
--- a/src/stardict_lib.cpp
+++ b/src/stardict_lib.cpp
@@ -71,7 +71,7 @@ static void unicode_strdown(gunichar *str)
         ++str;
     }
 }
-}
+} // namespace
 
 bool DictInfo::load_from_ifo_file(const std::string &ifofilename,
                                   bool istreedict)
@@ -826,7 +826,7 @@ bool WordListIndex::lookup(const char *str, glong &idx)
     }
     return bFound;
 }
-}
+} // namespace
 
 bool SynFile::load(const std::string &url, gulong wc)
 {
diff --git a/src/utils.hpp b/src/utils.hpp
index 1081fd3..d6f112b 100644
--- a/src/utils.hpp
+++ b/src/utils.hpp
@@ -68,7 +68,7 @@ namespace glib
 {
 typedef ResourceWrapper<gchar, void, g_free> CharStr;
 typedef ResourceWrapper<GError, GError, g_error_free> Error;
-}
+} // namespace glib
 
 extern std::string utf8_to_locale_ign_err(const std::string &utf8_str);