diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModRepel.cs b/osu.Game.Rulesets.Osu/Mods/OsuModRepel.cs
index 0aab019d73..1cb5bf31a4 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModRepel.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModRepel.cs
@@ -1,6 +1,8 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+#nullable disable
+
 using System;
 using osu.Framework.Bindables;
 using osu.Framework.Utils;