diff --git a/lib/direction_detector.rb b/lib/direction_detector.rb
index 73736186d..c5aa4575d 100644
--- a/lib/direction_detector.rb
+++ b/lib/direction_detector.rb
@@ -1,3 +1,4 @@
+# coding: utf-8
 #   Copyright (c) 2010, Diaspora Inc.  This file is
 #   licensed under the Affero General Public License version 3 or later.  See
 #   the COPYRIGHT file.
diff --git a/spec/lib/direction_detector_spec.rb b/spec/lib/direction_detector_spec.rb
index fbbd5fa55..68103c0f5 100644
--- a/spec/lib/direction_detector_spec.rb
+++ b/spec/lib/direction_detector_spec.rb
@@ -1,3 +1,4 @@
+# coding: utf-8
 # Copyright (c) 2010, Diaspora Inc.  This file is
 # licensed under the Affero General Public License version 3 or later.  See
 # the COPYRIGHT file.