diff --git a/.idea/setxkbmap-gtk.iml b/.idea/setxkbmap-gtk.iml
index bac9494a..09ef3c40 100644
--- a/.idea/setxkbmap-gtk.iml
+++ b/.idea/setxkbmap-gtk.iml
@@ -2,7 +2,9 @@
 <module type="JAVA_MODULE" version="4">
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
-    <content url="file://$MODULE_DIR$" />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+    </content>
     <orderEntry type="jdk" jdkName="Python 3.8" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
diff --git a/bin/key-mapper-gtk b/bin/key-mapper-gtk
index c836423f..a4e22c2a 100755
--- a/bin/key-mapper-gtk
+++ b/bin/key-mapper-gtk
@@ -29,9 +29,9 @@ from argparse import ArgumentParser
 import gi
 gi.require_version('Gtk', '3.0')
 gi.require_version('GLib', '2.0')
-from gi.repository import Gtk, GLib
+from gi.repository import Gtk
 
-from keymapper.util import find_devices
+from keymapper.data import get_data_path
 from keymapper.logger import logger, update_verbosity, log_info
 
 
@@ -44,7 +44,7 @@ class Window:
         builder.connect_signals(self)
         self.builder = builder
 
-        window = builder.get_object('key-mapper-gtk_window')
+        window = builder.get_object('window')
         window.show()
         self.window = window
 
@@ -52,6 +52,10 @@ class Window:
         """Get a widget from the window"""
         return self.builder.get_object(name)
 
+    def on_close(self, *_):
+        """Safely close the application."""
+        Gtk.main_quit()
+
 
 if __name__ == '__main__':
     parser = ArgumentParser()
diff --git a/data/key-mapper.glade b/data/key-mapper.glade
index 0a7750ea..e670bce0 100644
--- a/data/key-mapper.glade
+++ b/data/key-mapper.glade
@@ -2,8 +2,9 @@
 <!-- Generated with glade 3.36.0 -->
 <interface>
   <requires lib="gtk+" version="3.22"/>
-  <object class="GtkWindow">
+  <object class="GtkWindow" id="window">
     <property name="can_focus">False</property>
+    <signal name="delete-event" handler="on_close" swapped="no"/>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
diff --git a/keymapper/config.py b/keymapper/config.py
index 0f2aaa24..85f98dca 100644
--- a/keymapper/config.py
+++ b/keymapper/config.py
@@ -30,17 +30,7 @@ from keymapper.logger import logger
 _config = None
 
 
-_defaults = {
-    'pcm_input': 'null',
-    'input_use_dsnoop': True,
-    'input_use_softvol': True,
-    'input_plugin': 'hw',
-    'pcm_output': 'null',
-    'output_use_dmix': True,
-    'output_use_softvol': True,
-    'output_channels': 2,
-    'output_plugin': 'hw'
-}
+_defaults = {}
 
 
 def _modify_config(config_contents, key, value):
diff --git a/keymapper/data.py b/keymapper/data.py
new file mode 100644
index 00000000..46bd1e89
--- /dev/null
+++ b/keymapper/data.py
@@ -0,0 +1,47 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+# ALSA-Control - ALSA configuration interface
+# Copyright (C) 2020 sezanzeb <proxima@hip70890b.de>
+#
+# This file is part of ALSA-Control.
+#
+# ALSA-Control 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.
+#
+# ALSA-Control 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 ALSA-Control.  If not, see <https://www.gnu.org/licenses/>.
+
+
+"""Query settings."""
+
+
+import os
+import site
+import pkg_resources
+
+
+def get_data_path():
+    """Depending on the installation prefix, return the data dir."""
+    source_path = pkg_resources.require('keymapper')[0].location
+
+    # depending on where this file is installed to, make sure to use the proper
+    # prefix path for data
+    # https://docs.python.org/3/distutils/setupscript.html?highlight=package_data#installing-additional-files # noqa
+    if source_path.startswith(site.USER_BASE):
+        data_path = os.path.join(site.USER_BASE, 'share/key-mapper')
+    elif source_path.startswith('/usr/local/'):
+        data_path = '/usr/local/share/key-mapper'
+    elif source_path.startswith('/usr/'):
+        data_path = '/usr/share/key-mapper'
+    else:
+        # installed with -e, running from the cloned git source
+        data_path = os.path.join(source_path, 'data')
+
+    return data_path