diff --git a/postgres-appliance/scripts/post_init.sh b/postgres-appliance/scripts/post_init.sh
index 3b03ca34..cba98b75 100755
--- a/postgres-appliance/scripts/post_init.sh
+++ b/postgres-appliance/scripts/post_init.sh
@@ -159,7 +159,9 @@ BEGIN
     FROM pg_class
    WHERE relname = 'postgres_log_${i}'
      AND relnamespace = 'public'::pg_catalog.regnamespace;
- EXECUTE format('DROP %s IF EXISTS public.postgres_log_${i} CASCADE', obj_type);
+  IF obj_type IS NOT NULL THEN
+    EXECUTE format('DROP %s IF EXISTS public.postgres_log_${i} CASCADE', obj_type);
+  END IF;
 END;\$\$;"
 
     if [ "$LOG_SHIP_HOURLY" != "true" ]; then