diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 0e0c83f9f..22f1e0b0a 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -551,7 +551,7 @@ static void HWR_RenderPlane(subsector_t *subsector, extrasubsector_t *xsub, bool
 
 	HWR_Lighting(&Surf, lightlevel, planecolormap);
 
-	if (PolyFlags & (PF_Translucent|PF_Fog))
+	if (PolyFlags & (PF_Translucent|PF_Additive|PF_Substractive|PF_Fog))
 	{
 		Surf.PolyColor.s.alpha = (UINT8)alpha;
 		PolyFlags |= PF_Modulated;