diff --git a/sql/updates/world/4.3.4/2018_04_26_00_world.sql b/sql/updates/world/4.3.4/2018_04_26_00_world.sql
new file mode 100644
index 0000000000..08021b7f96
--- /dev/null
+++ b/sql/updates/world/4.3.4/2018_04_26_00_world.sql
@@ -0,0 +1,5 @@
+--
+DELETE FROM `terrain_swap_defaults` WHERE `MapId` IN (1,654);
+INSERT INTO `terrain_swap_defaults` (`MapId`, `TerrainSwapMap`, `Comment`) VALUES
+(1, 719, 'Mount Hyjal default terrain'),
+(654, 638, 'Gilneas default terrain');