diff --git a/README.md b/README.md
index 9942a91..5b11630 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ You have to add a relay port in WeeChat, for example on port 1234:
 
 In QWeeChat, click on connect and enter fields:
 
-- `server`: the IP address or hostname of your machine with WeeChat running
+- `hostname`: the IP address or hostname of your machine with WeeChat running
 - `port`: the relay port (defined in WeeChat)
 - `password`: the relay password (defined in WeeChat)
 - `totp`: the Time-Based One-Time Password (optional, to set if required by WeeChat)
diff --git a/qweechat/connection.py b/qweechat/connection.py
index aad350a..798e702 100644
--- a/qweechat/connection.py
+++ b/qweechat/connection.py
@@ -40,16 +40,16 @@ class ConnectionDialog(QtWidgets.QDialog):
         self.fields = {}
         focus = None
 
-        # server
-        grid.addWidget(QtWidgets.QLabel('<b>Server</b>'), 0, 0)
+        # hostname
+        grid.addWidget(QtWidgets.QLabel('<b>Hostname</b>'), 0, 0)
         line_edit = QtWidgets.QLineEdit()
         line_edit.setFixedWidth(200)
-        value = self.values.get('server', '')
+        value = self.values.get('hostname', '')
         line_edit.insert(value)
         grid.addWidget(line_edit, 0, 1)
-        self.fields['server'] = line_edit
+        self.fields['hostname'] = line_edit
         if not focus and not value:
-            focus = 'server'
+            focus = 'hostname'
 
         # port / SSL
         grid.addWidget(QtWidgets.QLabel('<b>Port</b>'), 1, 0)
diff --git a/qweechat/network.py b/qweechat/network.py
index d663dd8..e865702 100644
--- a/qweechat/network.py
+++ b/qweechat/network.py
@@ -115,7 +115,7 @@ class Network(QtCore.QObject):
 
     def _init_connection(self):
         self.status = STATUS_DISCONNECTED
-        self._server = None
+        self._hostname = None
         self._port = None
         self._ssl = None
         self._password = None
@@ -236,9 +236,9 @@ class Network(QtCore.QObject):
         """Return True if SSL is used, False otherwise."""
         return self._ssl
 
-    def connect_weechat(self, server, port, ssl, password, totp, lines):
+    def connect_weechat(self, hostname, port, ssl, password, totp, lines):
         """Connect to WeeChat."""
-        self._server = server
+        self._hostname = hostname
         try:
             self._port = int(port)
         except ValueError:
@@ -256,9 +256,9 @@ class Network(QtCore.QObject):
             self._socket.abort()
         if self._ssl:
             self._socket.ignoreSslErrors()
-            self._socket.connectToHostEncrypted(self._server, self._port)
+            self._socket.connectToHostEncrypted(self._hostname, self._port)
         else:
-            self._socket.connectToHost(self._server, self._port)
+            self._socket.connectToHost(self._hostname, self._port)
         self.set_status(STATUS_CONNECTING)
 
     def disconnect_weechat(self):
@@ -316,7 +316,7 @@ class Network(QtCore.QObject):
     def get_options(self):
         """Get connection options."""
         return {
-            'server': self._server,
+            'hostname': self._hostname,
             'port': self._port,
             'ssl': 'on' if self._ssl else 'off',
             'password': self._password,
diff --git a/qweechat/qweechat.py b/qweechat/qweechat.py
index 66a8d6a..090b76e 100644
--- a/qweechat/qweechat.py
+++ b/qweechat/qweechat.py
@@ -188,12 +188,12 @@ class MainWindow(QtWidgets.QMainWindow):
         # auto-connect to relay
         if self.config.getboolean('relay', 'autoconnect'):
             self.network.connect_weechat(
-                server=self.config.get('relay', 'server'),
-                port=self.config.get('relay', 'port'),
-                ssl=self.config.getboolean('relay', 'ssl'),
-                password=self.config.get('relay', 'password'),
+                hostname=self.config.get('relay', 'hostname', fallback=''),
+                port=self.config.get('relay', 'port', fallback=''),
+                ssl=self.config.getboolean('relay', 'ssl', fallback=''),
+                password=self.config.get('relay', 'password', fallback=''),
                 totp=None,
-                lines=self.config.get('relay', 'lines'),
+                lines=self.config.get('relay', 'lines', fallback=''),
             )
 
         self.show()
@@ -230,8 +230,8 @@ class MainWindow(QtWidgets.QMainWindow):
     def open_connection_dialog(self):
         """Open a dialog with connection settings."""
         values = {}
-        for option in ('server', 'port', 'ssl', 'password', 'lines'):
-            values[option] = self.config.get('relay', option)
+        for option in ('hostname', 'port', 'ssl', 'password', 'lines'):
+            values[option] = self.config.get('relay', option, fallback='')
         self.connection_dialog = ConnectionDialog(values, self)
         self.connection_dialog.dialog_buttons.accepted.connect(
             self.connect_weechat)
@@ -239,7 +239,7 @@ class MainWindow(QtWidgets.QMainWindow):
     def connect_weechat(self):
         """Connect to WeeChat."""
         self.network.connect_weechat(
-            server=self.connection_dialog.fields['server'].text(),
+            hostname=self.connection_dialog.fields['hostname'].text(),
             port=self.connection_dialog.fields['port'].text(),
             ssl=self.connection_dialog.fields['ssl'].isChecked(),
             password=self.connection_dialog.fields['password'].text(),