diff --git a/osu.Game/Graphics/Backgrounds/Triangles.cs b/osu.Game/Graphics/Backgrounds/Triangles.cs
index 5b7b94ff4c..28a715ca0b 100644
--- a/osu.Game/Graphics/Backgrounds/Triangles.cs
+++ b/osu.Game/Graphics/Backgrounds/Triangles.cs
@@ -252,7 +252,7 @@ namespace osu.Game.Graphics.Backgrounds
 
         private class TrianglesDrawNode : DrawNode
         {
-            private float fill = 1f;
+            private const float fill = 1f;
 
             protected new Triangles Source => (Triangles)base.Source;