diff --git a/atst/domain/exceptions.py b/atst/domain/exceptions.py
index b92e64c1..ec574232 100644
--- a/atst/domain/exceptions.py
+++ b/atst/domain/exceptions.py
@@ -27,4 +27,6 @@ class UnauthorizedError(Exception):
 
 
 class UnauthenticatedError(Exception):
-    pass
+    @property
+    def message(self):
+        return str(self)
diff --git a/atst/routes/errors.py b/atst/routes/errors.py
index 0d0211b8..e9dcafcf 100644
--- a/atst/routes/errors.py
+++ b/atst/routes/errors.py
@@ -8,12 +8,14 @@ def make_error_pages(app):
     @app.errorhandler(exceptions.UnauthorizedError)
     # pylint: disable=unused-variable
     def not_found(e):
+        app.logger.error(e.message)
         return render_template("not_found.html"), 404
 
 
     @app.errorhandler(exceptions.UnauthenticatedError)
     # pylint: disable=unused-variable
     def unauthorized(e):
+        app.logger.error(e.message)
         return render_template('unauthorized.html'), 401
 
     return app