diff --git a/web/pgadmin/utils/sqlautocomplete/parseutils.py b/web/pgadmin/utils/sqlautocomplete/parseutils.py
index 29b6ac8..b08a392 100644
--- a/web/pgadmin/utils/sqlautocomplete/parseutils.py
+++ b/web/pgadmin/utils/sqlautocomplete/parseutils.py
@@ -73,7 +73,7 @@ TableReference = namedtuple(
 # This code is borrowed from sqlparse example script.
 # <url>
 def is_subselect(parsed):
-    if not parsed.is_group():
+    if not parsed.is_group:
         return False
     sql_type = ('SELECT', 'INSERT', 'UPDATE', 'CREATE', 'DELETE')
     for item in parsed.tokens: