diff --git a/server/authentication.py b/server/authentication.py
index b3612c3..3610e9c 100644
--- a/server/authentication.py
+++ b/server/authentication.py
@@ -83,7 +83,7 @@ class Authetication:
 
             ##Save private key in separate file
             user_privatekey = {'passphrase': user_passphrase, 'privateClientKey': private_key_value, 'publicServerKey': public_server_key}
-            with open(self.PRIVATE_KEY_DIRECTORY_LOCATION + '\\' + str(data['index']) + '.txt', 'w+') as outfile:
+            with open(self.PRIVATE_KEY_DIRECTORY_LOCATION + os.path.sep + str(data['index']) + '.txt', 'w+') as outfile:
                 json.dump(user_privatekey, outfile)
 
             ##Save public key in users
@@ -110,7 +110,7 @@ class Authetication:
             auth_logger.debug("User NOT saved! This username already exists!")
             return False
         else:
-            if not os.path.isdir(self.HOME_DIRECTORY_LOCATION + "\\" + str(data['index'] + 1)):
+            if not os.path.isdir(self.HOME_DIRECTORY_LOCATION + os.path.sep + str(data['index'] + 1)):
                 data['index'] = data['index'] + 1
                 user = {
                     'username': username,
@@ -120,7 +120,7 @@ class Authetication:
                 }
 
                 ##Create user HOME directory with index as name
-                os.mkdir(self.HOME_DIRECTORY_LOCATION + '\\' + str(data['index']))
+                os.mkdir(self.HOME_DIRECTORY_LOCATION + os.path.sep + str(data['index']))
 
                 ##Save user data
                 data['user'].append(user)