diff --git a/PKHeX.Core/Resources/text/script/flags_usum_en.txt b/PKHeX.Core/Resources/text/script/flags_usum_en.txt
index 683ae9f49..f8e08e096 100644
--- a/PKHeX.Core/Resources/text/script/flags_usum_en.txt
+++ b/PKHeX.Core/Resources/text/script/flags_usum_en.txt
@@ -47,4 +47,5 @@
 4545	Unlocked Lanturn 360
 4546	Unlocked Primarina Twist
 4547	Unlocked Starmie 720
-4548	Unlocked Over-the-Gyarados
\ No newline at end of file
+4548	Unlocked Over-the-Gyarados
+4490	SlidePad to control UltraWarpRide
\ No newline at end of file