diff --git a/docs/rh-log.txt b/docs/rh-log.txt
index 39b44e19e..e10bcb43d 100644
--- a/docs/rh-log.txt
+++ b/docs/rh-log.txt
@@ -1,8 +1,7 @@
 October 29, 2009
+- Fixed: Sprites and decals that are drawn with addition must fade to black.
 - Make TranslateToStartSpot() set the new sector references for a polyobj's
   walls so that P_CheckSwitchRange() will work with them.
-- Fixed: If P_ActivateLine() failed in P_UseTraverse() it would not play
-  the *usefail sound.
 - Fixed: An unspecified save_dir will now save to the program directory on
   Windows. (Other operating systems already use the user's home directory
   instead.)
diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index 139167c5b..b654c4779 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -2432,14 +2432,21 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
 
 	// Prepare lighting
 	calclighting = false;
+	FDynamicColormap *usecolormap = basecolormap;
+
+	// Decals that are added to the scene must fade to black.
+	if (decal->RenderStyle.BlendOp == STYLEOP_Add && usecolormap->Fade != 0)
+	{
+		usecolormap = GetSpecialLights(usecolormap->Color, 0, usecolormap->Desaturate);
+	}
 
 	rw_light = rw_lightleft + (x1 - WallSX1) * rw_lightstep;
 	if (fixedlightlev >= 0)
-		dc_colormap = basecolormap->Maps + fixedlightlev;
+		dc_colormap = usecolormap->Maps + fixedlightlev;
 	else if (fixedcolormap != NULL)
 		dc_colormap = fixedcolormap;
 	else if (!foggy && (decal->RenderFlags & RF_FULLBRIGHT))
-		dc_colormap = basecolormap->Maps;
+		dc_colormap = usecolormap->Maps;
 	else
 		calclighting = true;
 
@@ -2486,7 +2493,7 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
 			{
 				if (calclighting)
 				{ // calculate lighting
-					dc_colormap = basecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
+					dc_colormap = usecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
 				}
 
 				WallSpriteColumn (R_DrawMaskedColumn);
@@ -2497,7 +2504,7 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
 			{
 				if (calclighting)
 				{ // calculate lighting
-					dc_colormap = basecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
+					dc_colormap = usecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
 				}
 				rt_initcols();
 				for (int zz = 4; zz; --zz)
@@ -2512,7 +2519,7 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
 			{
 				if (calclighting)
 				{ // calculate lighting
-					dc_colormap = basecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
+					dc_colormap = usecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
 				}
 
 				WallSpriteColumn (R_DrawMaskedColumn);
diff --git a/src/r_things.cpp b/src/r_things.cpp
index 5f88793e6..2eb5bdafd 100644
--- a/src/r_things.cpp
+++ b/src/r_things.cpp
@@ -1432,6 +1432,12 @@ void R_ProjectSprite (AActor *thing, int fakeside)
 
 	FDynamicColormap *mybasecolormap = basecolormap;
 
+	// Sprites that are added to the scene must fade to black.
+	if (vis->RenderStyle.BlendOp == STYLEOP_Add && mybasecolormap->Fade != 0)
+	{
+		mybasecolormap = GetSpecialLights(mybasecolormap->Color, 0, mybasecolormap->Desaturate);
+	}
+
 	if (vis->RenderStyle.Flags & STYLEF_FadeToBlack)
 	{
 		if (invertcolormap)