diff --git a/Sources/Plasma/FeatureLib/pfDXPipeline/plDXSettings.h b/Sources/Plasma/FeatureLib/pfDXPipeline/plDXSettings.h
index 10ca790927..174658b278 100644
--- a/Sources/Plasma/FeatureLib/pfDXPipeline/plDXSettings.h
+++ b/Sources/Plasma/FeatureLib/pfDXPipeline/plDXSettings.h
@@ -73,6 +73,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 
 //// General Settings /////////////////////////////////////////////////////////
 
+class plLightInfo;
 class plRenderRequest;
 class plRenderTarget;
 struct IDirect3DSurface9;