diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index 145a6b464..ba480ea9a 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -4773,7 +4773,7 @@ static void HWR_ProjectSprite(mobj_t *thing)
 	if (spriterotangle != 0
 	&& !(splat && !(thing->renderflags & RF_NOSPLATROLLANGLE)))
 	{
-		rollangle = R_GetRollAngle(vflip
+		rollangle = R_GetRollAngle(papersprite == vflip
 				? spriterotangle : InvAngle(spriterotangle));
 		rotsprite = Patch_GetRotatedSprite(sprframe, (thing->frame & FF_FRAMEMASK), rot, flip, false, sprinfo, rollangle);