diff --git a/setup.py b/setup.py
index b67d23c6..f0ef3952 100755
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ from slpkg.__metadata__ import (
     __email__,
     __author__
 )
-from slpkg.checksum import md5sum
+from slpkg.md5sum import md5
 
 
 try:
@@ -98,8 +98,8 @@ if "install" in sys.argv:
         filename = conf.split("/")[-1]
         print("Installing '{0}' file".format(filename))
         if os.path.isfile(conf_path + filename):
-            old = md5sum(conf_path + filename)
-            new = md5sum(conf)
+            old = md5(conf_path + filename)
+            new = md5(conf)
             if old != new:
                 shutil.copy2(conf, conf_path + filename + ".new")
         else:
diff --git a/slpkg/md5sum.py b/slpkg/md5sum.py
new file mode 100644
index 00000000..bc534387
--- /dev/null
+++ b/slpkg/md5sum.py
@@ -0,0 +1,33 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# md5sum.py file is part of slpkg.
+
+# Copyright 2014 Dimitris Zlatanidis <d.zlatanidis@gmail.com>
+# All rights reserved.
+
+# Utility for easy management packages in Slackware
+
+# https://github.com/dslackw/slpkg
+
+# Slpkg 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, either version 3 of the License, or
+# (at your option) any later version.
+# 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/>.
+
+import hashlib
+
+
+def md5(source):
+    '''
+    Return MD5 Checksum
+    '''
+    with open(source) as file_to_check:
+        data = file_to_check.read()
+        return hashlib.md5(data).hexdigest()