diff --git a/src/main/resources/sql/custom/custom_buffer_service_1_ulists.sql b/src/main/resources/sql/custom/custom_buffer_service_1_ulists.sql
index 60202f86f11366469f2701bb56f7fd10005c0902..b02013165ef563bfca94a3eb5127d46087797d7c 100644
--- a/src/main/resources/sql/custom/custom_buffer_service_1_ulists.sql
+++ b/src/main/resources/sql/custom/custom_buffer_service_1_ulists.sql
@@ -1,4 +1,4 @@
-CREATE TABLE `custom_buffer_service_ulists` (
+CREATE TABLE IF NOT EXISTS `custom_buffer_service_ulists` (
   `ulist_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `ulist_char_id` int(10) unsigned NOT NULL,
   `ulist_name` varchar(255) NOT NULL,
diff --git a/src/main/resources/sql/custom/custom_buffer_service_2_ulist_buffs.sql b/src/main/resources/sql/custom/custom_buffer_service_2_ulist_buffs.sql
index 03b298aa45299ac90196b8dc0e943d5f6478d484..26abcbe5eac63bb4677a9d304056edb485bd85c4 100644
--- a/src/main/resources/sql/custom/custom_buffer_service_2_ulist_buffs.sql
+++ b/src/main/resources/sql/custom/custom_buffer_service_2_ulist_buffs.sql
@@ -1,4 +1,4 @@
-CREATE TABLE `custom_buffer_service_ulist_buffs` (
+CREATE TABLE IF NOT EXISTS `custom_buffer_service_ulist_buffs` (
   `ulist_id` int(10) unsigned NOT NULL,
   `ulist_buff_ident` varchar(255) NOT NULL,
   PRIMARY KEY (`ulist_id`,`ulist_buff_ident`),