diff --git a/routes.py b/routes.py
index b6120aa..b05a8e4 100644
--- a/routes.py
+++ b/routes.py
@@ -47,4 +47,5 @@ def logout():
     if(g.viewer):
         db.session.delete(g.viewer)
         db.session.commit()
+        g.viewer = None
     return redirect(url_for('index'))