diff --git a/web/pgadmin/browser/server_groups/servers/pg_timetable/__init__.py b/web/pgadmin/browser/server_groups/servers/pg_timetable/__init__.py
index aaa99d09ae0..bdbf4994e13 100644
--- a/web/pgadmin/browser/server_groups/servers/pg_timetable/__init__.py
+++ b/web/pgadmin/browser/server_groups/servers/pg_timetable/__init__.py
@@ -53,8 +53,10 @@ def backend_supported(self, manager, **kwargs):
 
         status, res = conn.execute_scalar("""
 SELECT
-    has_table_privilege(
-      'timetable.chain', 'INSERT, SELECT, UPDATE'
+    (
+      has_table_privilege('timetable.chain', 'INSERT') AND
+      has_table_privilege('timetable.chain', 'SELECT') AND
+      has_table_privilege('timetable.chain', 'UPDATE')
     ) has_priviledge
 WHERE EXISTS(
     SELECT has_schema_privilege('timetable', 'USAGE')
diff --git a/web/pgadmin/browser/server_groups/servers/pg_timetable/tests/utils.py b/web/pgadmin/browser/server_groups/servers/pg_timetable/tests/utils.py
index c59548ec10e..38cf36f2eae 100644
--- a/web/pgadmin/browser/server_groups/servers/pg_timetable/tests/utils.py
+++ b/web/pgadmin/browser/server_groups/servers/pg_timetable/tests/utils.py
@@ -116,8 +116,10 @@ def is_pgtimetable_installed_on_server(self):
 
         SQL = """
         SELECT
-            has_table_privilege(
-              'timetable.chain', 'INSERT, SELECT, UPDATE'
+            (
+              has_table_privilege('timetable.chain', 'INSERT') AND
+              has_table_privilege('timetable.chain', 'SELECT') AND
+              has_table_privilege('timetable.chain', 'UPDATE')
             ) has_priviledge
         WHERE EXISTS(
             SELECT has_schema_privilege('timetable', 'USAGE')