diff --git a/web/pgadmin/utils/driver/psycopg2/__init__.py b/web/pgadmin/utils/driver/psycopg2/__init__.py
index 95aa95c..1f7773b 100644
--- a/web/pgadmin/utils/driver/psycopg2/__init__.py
+++ b/web/pgadmin/utils/driver/psycopg2/__init__.py
@@ -1735,7 +1735,7 @@ class Driver(BaseDriver):
         for sess in self.managers:
             sess_mgr = self.managers[sess]
 
-            if sess == session['_id']:
+            if sess == session.get('_id'):
                 sess_mgr['pinged'] = curr_time
                 continue