diff --git a/src/sernatur-window.vala b/src/sernatur-window.vala
index f1f83ba..b46153b 100644
--- a/src/sernatur-window.vala
+++ b/src/sernatur-window.vala
@@ -33,6 +33,13 @@ namespace Sernatur {
 			GLib.Object (application: application);
 			Database conn;
 
+			var file = File.new_for_path ("/etc/sernatur/sernatur.conf");
+			if (!file.query_exists ()) {
+				stderr.printf (dgettext (null, "File '%s' doesn't exist.\n"), file.get_path ());
+				application.quit ();
+				return;
+			}
+
 			Config config = Config();
 			if (!config.read_file ("/etc/sernatur/sernatur.conf")) {
 				stderr.printf ("%s\n", config.error_message ());