diff --git a/osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyNewStyleSpinner.cs b/osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyNewStyleSpinner.cs
index d5cc469ca9..22944becf3 100644
--- a/osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyNewStyleSpinner.cs
+++ b/osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyNewStyleSpinner.cs
@@ -82,7 +82,7 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 
             var topProvider = source.FindProvider(s => s.GetTexture("spinner-top") != null);
 
-            if (topProvider is LegacySkinTransformer transformer && !(transformer.Skin is DefaultLegacySkin))
+            if (topProvider is ISkinTransformer transformer && !(transformer.Skin is DefaultLegacySkin))
             {
                 AddInternal(ApproachCircle = new Sprite
                 {
diff --git a/osu.Game/Skinning/ISkinTransformer.cs b/osu.Game/Skinning/ISkinTransformer.cs
new file mode 100644
index 0000000000..f985b8afcd
--- /dev/null
+++ b/osu.Game/Skinning/ISkinTransformer.cs
@@ -0,0 +1,17 @@
+// 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.
+
+namespace osu.Game.Skinning
+{
+    /// <summary>
+    /// A skin transformer takes in an <see cref="ISkin"/> and applies transformations to it.
+    /// The most common use case is allowing individual rulesets to add skinnable components without directly coupling to underlying skins.
+    /// </summary>
+    public interface ISkinTransformer : ISkin
+    {
+        /// <summary>
+        /// The original skin that is being transformed.
+        /// </summary>
+        ISkin Skin { get; }
+    }
+}
diff --git a/osu.Game/Skinning/LegacySkinTransformer.cs b/osu.Game/Skinning/LegacySkinTransformer.cs
index 8f2526db37..353ee067d1 100644
--- a/osu.Game/Skinning/LegacySkinTransformer.cs
+++ b/osu.Game/Skinning/LegacySkinTransformer.cs
@@ -18,11 +18,8 @@ namespace osu.Game.Skinning
     /// <summary>
     /// Transformer used to handle support of legacy features for individual rulesets.
     /// </summary>
-    public abstract class LegacySkinTransformer : ISkin
+    public abstract class LegacySkinTransformer : ISkinTransformer
     {
-        /// <summary>
-        /// The <see cref="ISkin"/> which is being transformed.
-        /// </summary>
         [NotNull]
         public ISkin Skin { get; }
 
diff --git a/osu.Game/Skinning/SkinnableSprite.cs b/osu.Game/Skinning/SkinnableSprite.cs
index f8a9aaa6fb..5a39121b16 100644
--- a/osu.Game/Skinning/SkinnableSprite.cs
+++ b/osu.Game/Skinning/SkinnableSprite.cs
@@ -100,7 +100,7 @@ namespace osu.Game.Skinning
                 {
                     foreach (var skin in skins)
                     {
-                        if (skin is LegacySkinTransformer transformer && isUserSkin(transformer.Skin))
+                        if (skin is ISkinTransformer transformer && isUserSkin(transformer.Skin))
                             return transformer.Skin;
 
                         if (isUserSkin(skin))