diff --git a/src/p_slopes.c b/src/p_slopes.c
index 20652a08a..3c124a550 100644
--- a/src/p_slopes.c
+++ b/src/p_slopes.c
@@ -78,7 +78,7 @@ void P_UpdateSlopeLightOffset(pslope_t *slope)
 	}
 	else
 	{
-		light = FixedDiv(R_PointToAngle2(0, 0, abs(slope->d.x), abs(slope->d.y)), ANGLE_90);
+		light = FixedDiv(R_PointToAngle2(0, 0, abs(slope->normal.y), abs(slope->normal.x)), ANGLE_90);
 	}
 
 	zMul = min(FRACUNIT, abs(slope->zdelta)*3/2); // *3/2, to make 60 degree slopes match walls.
diff --git a/src/r_plane.c b/src/r_plane.c
index 4018ed49b..5a97c2dbe 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -388,7 +388,7 @@ visplane_t *R_FindPlane(fixed_t height, INT32 picnum, INT32 lightlevel,
 
 	if (slope != NULL && P_ApplyLightOffset(lightlevel >> LIGHTSEGSHIFT))
 	{
-		if (reverseLight)
+		if (reverseLight && maplighting.directional == true)
 		{
 			lightlevel -= slope->lightOffset * 8;
 		}