diff --git a/osu.Game/Rulesets/Difficulty/Skills/StrainSkill.cs b/osu.Game/Rulesets/Difficulty/Skills/StrainSkill.cs
index a76a0a5526..3ba67793dc 100644
--- a/osu.Game/Rulesets/Difficulty/Skills/StrainSkill.cs
+++ b/osu.Game/Rulesets/Difficulty/Skills/StrainSkill.cs
@@ -44,7 +44,7 @@ namespace osu.Game.Rulesets.Difficulty.Skills
         /// <summary>
         /// Process a <see cref="DifficultyHitObject"/> and update current strain values accordingly.
         /// </summary>
-        public override void Process(DifficultyHitObject current)
+        public sealed override void Process(DifficultyHitObject current)
         {
             // The first object doesn't generate a strain, so we begin with an incremented section end
             if (current.Index == 0)