diff --git a/osu.Game/Skinning/RulesetSkinProvidingContainer.cs b/osu.Game/Skinning/RulesetSkinProvidingContainer.cs
index 26646d87fe..19efc66814 100644
--- a/osu.Game/Skinning/RulesetSkinProvidingContainer.cs
+++ b/osu.Game/Skinning/RulesetSkinProvidingContainer.cs
@@ -88,7 +88,7 @@ protected virtual void UpdateSkinSources()
                 }
             }
 
-            int lastDefaultSkinIndex = SkinSources.IndexOf(SkinSources.OfType<DefaultSkin>().Last());
+            int lastDefaultSkinIndex = SkinSources.IndexOf(SkinSources.OfType<DefaultSkin>().LastOrDefault());
 
             // Ruleset resources should be given the ability to override game-wide defaults
             // This is achieved by placing them before the last instance of DefaultSkin.