diff --git a/pg_chameleon/lib/pg_lib.py b/pg_chameleon/lib/pg_lib.py
index c2009506..3be78ad3 100644
--- a/pg_chameleon/lib/pg_lib.py
+++ b/pg_chameleon/lib/pg_lib.py
@@ -3878,7 +3878,7 @@ def store_table(self, schema, table, table_pkey, master_status):
             binlog_pos = None
 
 
-        if len(table_pkey) > 0:
+        if (table_pkey is not None and len(table_pkey)) > 0:
             sql_insert = """
                 INSERT INTO sch_chameleon.t_replica_tables
                     (