diff --git a/include/Spectre/Graphics/PixelFormat.h b/include/Spectre/Graphics/PixelFormat.h
index 60e2bb1..772f875 100644
--- a/include/Spectre/Graphics/PixelFormat.h
+++ b/include/Spectre/Graphics/PixelFormat.h
@@ -9,4 +9,4 @@ enum PixelFormat
 	PF_Alpha	= 3,	// 1 byte alpha channel.
 };
 
-#endif SPECTRE_GRAPHICS_PIXELFORMAT_H
+#endif /* SPECTRE_GRAPHICS_PIXELFORMAT_H */