diff --git a/conf/config.example.js b/conf/config.example.js
new file mode 100644
index 0000000..c1a6242
--- /dev/null
+++ b/conf/config.example.js
@@ -0,0 +1,3 @@
+// Here you can overwite the default configuration values
+window.owntracks = window.owntracks || {};
+window.owntracks.config = {};
diff --git a/scripts/install b/scripts/install
index 5738f16..2335244 100644
--- a/scripts/install
+++ b/scripts/install
@@ -47,6 +47,16 @@ pushd $install_dir
 	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH NODE_ENV=production yarn build
 popd
 
+#=================================================
+# ADD A CONFIGURATION
+#=================================================
+ynh_script_progression --message="Adding a configuration file..." --weight=1
+
+ynh_add_config --template="config.example.js" --destination="$install_dir/public/config/config.js"
+
+chmod 400 "$install_dir/public/config/config.js"
+chown $app:$app "$install_dir/public/config/config.js"
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index eec1e00..0dd17c6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -26,7 +26,7 @@ then
 	ynh_script_progression --message="Upgrading source files..."
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir"
+	ynh_setup_source --dest_dir="$install_dir" --keep="public/config/config.js"
 fi
 
 chmod -R o-rwx "$install_dir"