diff --git a/spine-monogame/spine-monogame/spine-monogame.csproj b/spine-monogame/spine-monogame/spine-monogame.csproj
index 788aed7e2..04978d65f 100644
--- a/spine-monogame/spine-monogame/spine-monogame.csproj
+++ b/spine-monogame/spine-monogame/spine-monogame.csproj
@@ -29,7 +29,6 @@
spine-csharp\BoneLocal.cs
spine-csharp\BonePose.cs
spine-csharp\ColorMono.cs
- spine-csharp\ColorUnity.cs
spine-csharp\Constraint.cs
spine-csharp\ConstraintData.cs
spine-csharp\Event.cs