diff --git a/osu.Game.Tests/Skins/IO/ImportSkinTest.cs b/osu.Game.Tests/Skins/IO/ImportSkinTest.cs
index f3adb85006..8b7fcae1a9 100644
--- a/osu.Game.Tests/Skins/IO/ImportSkinTest.cs
+++ b/osu.Game.Tests/Skins/IO/ImportSkinTest.cs
@@ -357,7 +357,7 @@ namespace osu.Game.Tests.Skins.IO
             }
         }
 
-        private async Task<Live<SkinInfo>> loadSkinIntoOsu(OsuGameBase osu, ImportTask import = null)
+        private async Task<Live<SkinInfo>> loadSkinIntoOsu(OsuGameBase osu, ImportTask import)
         {
             var skinManager = osu.Dependencies.Get<SkinManager>();
             return await skinManager.Import(import);