diff --git a/src/OpenTK.GLWidget/X11/GLXAttribute.cs b/src/OpenTK.GLWidget/X11/GLXAttribute.cs
index 1846188e..29dbe943 100644
--- a/src/OpenTK.GLWidget/X11/GLXAttribute.cs
+++ b/src/OpenTK.GLWidget/X11/GLXAttribute.cs
@@ -1,24 +1,24 @@
 namespace OpenTK.X11
 {
-	public enum GLXAttribute
-	{
-		None			= 0,
-		UseGL			= 1,
-		BufferSize		= 2,
-		Level			= 3,
-		RGBA			= 4,
-		DoubleBuffer	= 5,
-		Stereo			= 6,
-		AuxBuffers		= 7,
-		RedSize			= 8,
-		GreenSize		= 9,
-		BlueSize		= 10,
-		AlphaSize		= 11,
-		DepthSize		= 12,
-		StencilSize		= 13,
-		AccumRedSize	= 14,
-		AccumGreenSize	= 15,
-		AccumBlueSize	= 16,
-		AccumAlphaSize	= 17
-	}
+    public enum GLXAttribute
+    {
+        None            = 0,
+        UseGL           = 1,
+        BufferSize      = 2,
+        Level           = 3,
+        RGBA            = 4,
+        DoubleBuffer    = 5,
+        Stereo          = 6,
+        AuxBuffers      = 7,
+        RedSize         = 8,
+        GreenSize       = 9,
+        BlueSize        = 10,
+        AlphaSize       = 11,
+        DepthSize       = 12,
+        StencilSize     = 13,
+        AccumRedSize    = 14,
+        AccumGreenSize  = 15,
+        AccumBlueSize   = 16,
+        AccumAlphaSize  = 17
+    }
 }
\ No newline at end of file