diff --git a/sql/updates/world/custom/custom_2018_12_15_01_world.sql b/sql/updates/world/custom/custom_2018_12_15_01_world.sql
new file mode 100644
index 00000000000..b7497dea0b9
--- /dev/null
+++ b/sql/updates/world/custom/custom_2018_12_15_01_world.sql
@@ -0,0 +1 @@
+UPDATE `creature_template` SET `mechanic_immune_mask`= `mechanic_immune_mask` | 33554432 WHERE `entry` IN (39625, 48337, 40177, 48702);