diff --git a/ExampleApp/Main/__init__.py b/ExampleApp/Main/__init__.py
index 5ac0295f2cbf2325640162ca360ecca2d8c9c083..5ecb9d9e9b922bffea0bdccf1b3ecc89c77f1c3d 100644
--- a/ExampleApp/Main/__init__.py
+++ b/ExampleApp/Main/__init__.py
@@ -8,5 +8,5 @@ def change_lang():
   if request.args.get('lang'):
     session['language'] = request.args.get('lang')
   print('session language: {0}, request lang {1}'.format(
-    session['language'], request.args.get('lang')) )
+    session.get('language', 'None'), request.args.get('lang', 'None')) )
   return render_template('change_language.html')
\ No newline at end of file