diff --git a/src/config.cpp b/src/config.cpp
index 6676219..234ab33 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -109,7 +109,7 @@ std::uint16_t read_config(string &instance, string &access_token, string &feedur
             cerr << "Error code: " << ret << '\n';
             return ret;
         }
-        
+
     }
     if (feedurl.empty())
     {
@@ -177,7 +177,7 @@ std::uint16_t read_config(string &instance, string &access_token, string &feedur
 }
 
 
-const bool write_config()
+bool write_config()
 {
     std::ofstream outfile(filepath + "config-" + profile + ".json");
     if (outfile.is_open())
diff --git a/src/http.cpp b/src/http.cpp
index b3f52ab..71c0bd8 100644
--- a/src/http.cpp
+++ b/src/http.cpp
@@ -1,6 +1,6 @@
 /*  This file is part of mastorss.
- *  Copyright © 2018 tastytea <tastytea@tastytea.de>
- *                                                                   
+ *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
+ *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, version 3.
@@ -37,7 +37,8 @@ void curlpp_init()
     curlpp::initialize();
 }
 
-const std::uint16_t http_get(const string &feedurl, string &answer, const string &useragent)
+std::uint16_t http_get(const string &feedurl, string &answer,
+                       const string &useragent)
 {
     try
     {
@@ -51,7 +52,7 @@ const std::uint16_t http_get(const string &feedurl, string &answer, const string
         });
         request.setOpt<curlopts::FollowLocation>(true);
         request.setOpt<curlopts::WriteStream>(&oss);
-        
+
         request.perform();
         std::uint16_t ret = curlpp::infos::ResponseCode::get(request);
         if (ret == 200 || ret == 302 || ret == 307)
diff --git a/src/mastorss.hpp b/src/mastorss.hpp
index e03263b..7d9a6e8 100644
--- a/src/mastorss.hpp
+++ b/src/mastorss.hpp
@@ -1,3 +1,19 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef mastorss_HPP
 #define mastorss_HPP
 
@@ -15,12 +31,12 @@ extern Json::Value config;
 extern std::string profile;
 
 std::uint16_t read_config(string &instance, string &access_token, string &feedurl);
-const bool write_config();
+bool write_config();
 
 std::vector<Mastodon::Easy::Status> parse_feed(const string &xml);
 void individual_fixes(string &str);
 
-const std::uint16_t http_get(const string &feedurl,
+std::uint16_t http_get(const string &feedurl,
                              string &answer, const string &useragent = "");
 void curlpp_init();